I don't think it's that simple. They just have different playstyles. You're not going to play Ryu like you would play Akuma and vice versa.
I dont really play this game but Marvellous Adventures, Mike Ross, ditch Ryu for Akuma haha
Level 3 Akuma is the most damaing character in the game.
When he was talking about looping the l. Tatsu's, (dmg/length), you can do a max loop of 9. But it's enough to kill off any character with a max damage of 1.4mil dmg.
*with 1 hyper bar only, from mid screen + wall bounce, ryu does more damage (up to 690k for a non technical newbie like me)
Ryu +1
*ryu is better at keeping away with jumping straight fireball (and the right assist, say doom's beam. it covers the whole screen.
Akuma doesn't control the air as much
ryu +1
*akuma's tatsu is better and absorbs projectile.
akuma +1
*against flying turtle (phoenix...) launching fireball, all that akuma can do is jump tatsu, but he has a lot more trouble to punish this. Ryu just has to hyper straight ahead.
ryu +1
overall, not sure akuma is better, knowing that he will die a lot more easily.
very fair comparison. i agree with akuma being better overall but both viable.