Since you're an expert on this: Should I watch the "old" Dr. Who Episodes from the '60s or do you think the new BBC series is also good? I'm at around season 3 or 4 with the new series and it's getting boring, thinking about rather watching the 60s one.
My tolerance for nuWho ends with David Tennant's regeneration into Matt Smith. I
loathe Matt Smith, I loathe the way the whole era is set up in a pretzel mess that needs a flowchart to figure out (at least that's how it is for me). There were only two tolerable stories in his era, one of which was a Christmas special that was a riff on "A Christmas Carol" and the other was the 50th Anniversary episode (Because Tom Baker is in it).
However, others disagree with this and think Smith is the best thing since sliced whatever-your-favorite-sliced-food-might-be. I'll admit there were a few poignant moments here and there, but they were overshadowed by the pretzel-twisting plot.
My issues with Capaldi's Doctor aren't with Peter Capaldi. He's good enough as the Doctor, but he had the most awful writing and an even worse companion, Clara the Ultimate Mary Sue Who Refuses To Die.
Again, others disagree (hoo boy, did Plotinus and I disagree about this, down in A&E, where there's a very long Doctor Who thread if you're at all interested).
I'm a totally unapologetic Classic Who fan. I got hooked in the fall of 1982, when the Peter Davison (Fifth Doctor) was on, although the PBS station we got was still showing the Tom Baker episodes (Fourth Doctor). We did get to see the 20th anniversary show "The Five Doctors" along with everyone else, in 1983.
There are some wonderful historical episodes in the First Doctor era. I love the one about the Aztecs, as everyone in the cast gets the chance to do special stuff and shine (Ian Chesterton, as far as I'm concerned, is THE best male companion the Doctor ever had). A later historical episode, The Romans, has the Doctor and his companions meeting Nero, getting involved in gladiatorial games, and so on. And of course this is the era when the two classic villains were created - the Daleks and the Cybermen.
I haven't seen as many Second Doctor stories, since alas, that was a time when the BBC didn't have a clue how popular this show would be, so they actually
recorded over the old episodes. This is the era of the Lost Episodes that we'll never get to see in their original form. Some were eventually recovered, and some have been partially restored. Most of what I did see was very entertaining, and the Doctor had a fun relationship with his companions (Jamie and Zoe).
Fun Fact: This Doctor's companion Jamie McCrimmon is the inspiration for Diana Gabaldon writing her Outlander novels that were turned into a TV series several decades later.
The Third Doctor, Jon Pertwee, was more of a "James Bond" sort of Doctor (action/adventure, nifty gadgets, and this Doctor really liked different kinds of vehicles - no romantic hanky-panky, though; nothing like that ever came along until the Eighth Doctor (Paul McGann)). He'd been exiled to Earth at the end of the previous Doctor's era, as a punishment for meddling too much in the affairs of various planets and people. The Time Lords decided to give him a ... time out... so to speak (sorry!

). This is the era when U.N.I.T. was in a lot of episodes (the United Nations Intelligence Taskforce, headed by Brigadier Alastair-Gordon Lethbridge-Stewart). The Third Doctor was fun - action/adventure, and he does eventually have his exile rescinded so he can once again jump in the TARDIS and take off for some other planet.
The Fourth Doctor is MY Doctor (it's not uncommon for fans' favorite Doctor to be the first one they started watching). Tom Baker
is Doctor Who; he's stated in interviews that when he was out in public he tried never to say or do anything that would be objectionable to the viewers - no rowdy, drunken behavior, for example. He knew kids were watching and didn't want to disappoint anyone.
There's an episode in his first season called "Genesis of the Daleks". As far as I'm concerned, this is the Whovian equivalent of Star Trek's "City on the Edge of Forever." It's got a moral dilemma in it that's often debated when people are talking about time travel. Do you kill someone or something that is evil or does something to cause bad things to happen in the future, before it actually does become evil, or cause the bad things, or do you give it a chance to not be evil/cause the bad stuff? Kinda like asking if it's moral to kill Hitler when he's a baby, except in this case it's talking about an entire species.
Some people accuse the Tom Baker era of being too campy. Granted there are stories are really campy, and wouldn't you know it, one of those was the first one I tried to watch. Douglas Adams (creator of Hitchhiker's Guide to the Galaxy) was the story editor at the time, and he was in charge during the season when the Doctor and Romana were searching for the Key to Time. I'd promised someone I met in college that I'd give this series an honest try, which meant watching a whole story (they were 4 22-minute episodes then). So my first experience with Doctor Who was "The Pirate Planet." That story is so BS!C that I nearly turned the TV off. Only my promise made me keep it on and keep watching.
Luckily the next one, Stones of Blood, was a vast improvement, and so it didn't take much more time for me to get totally hooked, and then go on a hunt for all the Target episode novelizations I could find.
The Fifth Doctor, Peter Davison, had some pretty good stories. He also had the first instance of a companion dying since two of them were killed during the First Doctor's era. That haunted him right up to his own death/regeneration.
The Sixth Doctor (Colin Baker) gets an unfair amount of criticism. Some <jerk> at the BBC was sincerely trying to kill the show, so they treated Colin Baker like crap, and some of the writing was abominably bizarre. Up till then, his companions had an introductory episode, and when they left, there was usually some sensible reason for it. But with the Sixth Doctor, there was suddenly this companion and we never got to find out how she and the Doctor met. This wasn't addressed until the
next Doctor (Sylvester McCoy) who just mumbled something incomprehensible about it when she left, and that was that.
There were a couple of really good stories in the Seventh Doctor era: Silver Nemesis and Battlefield (which saw the return of U.N.I.T., which had been absent from the series for many years).
After that, Doctor Who was basically canceled, until it was revived briefly in 1996, in an American TV movie starring Paul McGann and Daphne Ashbrook. If the ratings had been better, I think the show would have been revived then, rather than waiting until 2005. Paul McGann just
nailed the part of the Doctor. If I were to rank the Doctors, McGann would be in second place behind Tom Baker. He was
that good. Unfortunately the movie suffered from bad writing and whoever cast Eric Roberts as the Master should have something extremely horrible done to them. He was terrible.
Paul McGann reprised his Doctor in 2013, in the webisode "Night of the Doctor." It's approximately 7 minutes long, and it's a prequel to the 50th anniversary show "Day of the Doctor". I'm impressed as everything, because once again... he absolutely nailed it perfectly. It's so unfair that he never got his own series, or had a part in the 50th anniversary show itself. He would have been superb.
Anyway, that's a very condensed version of my opinions of the Classic Who era. Yes, I definitely think it's worth your time to check it out. There are eight different Doctors, and while they all play the Doctor, they do so in very different ways. What appeals to me might not be your preference, and vice-versa.