This is a very tough question as I’ve played more fighting games than anyone I know combined. I had to really think about this one and I’ve realized that Akuma is my favorite character out of all the fighting games I’ve played. I have to pick Akuma in every single fighting game that he’s in. He’s not my main character in any fighting game but I always play with him a lot, even if I know I’m not going to win. He’s very fun to use in any game. He’s pretty much always the same in every game unless it was like a puzzle or card game.
Akuma in Marvel vs. Capcom 2 is my favorite because he’s just insane with all the combos you can do with him using the game’s mechanics. MvC2 is the only game where Akuma can do a dashing combo, launch your opponent into the air, do an air combo into a Tatsumaki Senpuukyaku, into an air Gohadoken and cancel into air Messatsu Gohadoken Hyper Combo. He’s very fun to play with in MvC2 despite the fact that his health is very low as usual and he’s low tier.
I like Akuma because he’s simple to use since he’s a Shotokan. He’s got a similar move set to Ryu and Ken but what makes him really unique is his Raging Demon. I’ve never played a game that had such a ridiculous input for a move. I always feel that it was worth it if you actually did pull it off and catch someone with the Raging Demon because it always looks epic, especially if it’s for the win. The dude has fire aura, he’s got red spiky hair and he just looks bad-ass. Plus not many characters can shoot projectiles while in the air back in the day. Even in Street Fighter IV, he’s the only character that has an air projectile and the Raging Demon still looks epic. He’s too cool. How can you not like him.