Excuse my poor english
1) civ2 -> for the year it came out it was superb (played till 2 years ago. next civs are quite equals to this (not really new and fantastic innovations since civ2, SMAC excluded)
2) SMAC -> i love sci fi and i waited this game for years and years (i was 12 years old..it cames out after years...). Here we find all innovations that civ2 hasn't (government forms:the bests of all-civs series. UN-like system:the best of all-civs series.) It has also a great map style (REAL 3D, not like civ4) and some fkin ideas for tech and other (cities on water!, terraforming...) that makes me cry as a children
SMAC included most ideas than the other civs putted togheter... I can't understand why firaxis had leaved this path...
3)civ4 -> actually playing it. Surely better than CIV3. It has some good ideas but it seems that firaxis can't touches the high standards of the past (SMAC). The first release of the game was BUGGED AS HELL (fkin marketing).. now it is enjoyable but i HATE the LOADING TIME...... why i must have a supercomputer to run this?? i can't believe this .games like oblivion run faster than civ4... (maybe not good code?)
PROS: love playing mods. i'm playing rhyes and fall, it's wonderful. Finally it is possible mod civ as you like. (Maybe in civ5 it will be easier? not XML,Phyton,C++,worldbuilder ecc ecc...)
4)civ3 -> nearly unplayable. Poor new ideas (and abandoned many good past ideas..). Biggests and maybe beauty scenarios are not playable (maybe now.. i've not tested on my new PC). After a couple of month i returned playing civ2... Positive note: loved DYP! (thanks community)
Expansion packs -> vote: 0. I will not buy any other firaxis expansion pack.. (30-40 euros for a couple of scenarios and a very little game innovation?? AH!).
I'm grown with civ2 free scenarios, i can't see why i must pay for a scenario...
Community does much more than firaxis. Sorry sid.
Civ 1 -> i played it only a couple of time when i was 9-10 years old... I don't remember so much, but it has carried in me CIV ADDICTION!!!