If you want an annoying cartoon character I'd suggest Scrappy-doo, who briefly ruined Scooby-doo some years ago.
It is for this reason that TV Tropes calls a character who is either loved or hated by each individual person "the Scrappy." Case in point: Shadow the hedgehog.
Sonic sucks. He's boring, is in a terrible game, and has a buddy that never helps you.
1. It depends on which version of the character you find; he changes a lot depending on medium. He can be the nicest guy ever, or a total jerk. Generally is somewhere in the middle.
2. Sonic the Hedgehog is fetished by tons of gamers, especially the older ones who can't adapt to modern games.
3. Tails actually is basically a cheap 2-player feature; he makes the game much easier if you use him. He also plays a key role in a boss; he keeps catching you before you die by falling.
Sonic had a least 3 western animated series and one anime- at least that I'm aware of. Mario also had 3 western cartoons and an anime- but the anime came first or second. But Sonic was a video game first and foremost.
Well, still a cartoon.
...I wasn't aware Mario had more than one cartoon...
Furthermore, Sonic had three Western cartoons, one anime series(Sonic X), and one anime movie.
I think we can all agree on Sonic.
Oh good lord... clearly you haven't seen the abomination that is Chris Thorndyke.
I think Chris is by far the worst. He was amplified x 10 by the horror that is 4Kids' dub of Sonic X.
But the cartoons were a little childish, especially The Adventures of Sonic the Hedgehog. The voice acting was weird. I'm not sure why they made Robotnik say "Snooping as usual" they way he did. It's so unnatural.
Well Adventures was purposely childish; it was meant to be the insane cartoon for kids. Whereas the Sonic the Hedgehog cartoon was darker, more serious, and more inventive with its plot - the bad guy starts out ruling the world for once! Robotnik is far more sinister in the latter than the former, being somebody who weakens your bowels rather than somebody who you laugh at.
Jaleel White's Sonic voice is a case of the Scrappy on its own: you either <3 it or wanna crush it. Jim Cummings does an awesome job as Robotnik, however. Long John Baldry was just... weird as Robotnik.
Also, for horrible voice acting, watch Sonic the Movie sometime. It will make you
!
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On-topic:
Most annoying - The Award goes to Chris Thorndyke. Unnecessary character that cuts in on Tails'
forbidden lovefriendship with Sonic.
Most scary - I can't really think of any particularly scary villain, though SatAM Robotnik certainly takes the cake on being the most menacing of all the versions.
Most fail - Shadow the Hedgehog *gasp* in English Sonic X. I bought the SA2 adaption because I really wanted to see him. Boy was I disappointed... his voice is HORRIBLE compared to the one he had in his debut game. That and he just doesn't make any sense: why would you want to
BLOW UP THE EARTH because your friend was imprisoned? At least the game version seeing her die before his very eyes made sense. His voice makes him sound either like he's about to cut you or cut himself. That and he makes awkward pauses when he uses Chaos Spear and that always caused me to
.