Hey that's unfair. SF4? His intricacies are pretty complex if you want to be a GOOD Ryu player. I think Hawk is the easiest character to use.
Hawk has nightmare matchups where he has barely any chance of getting it. At high level, Hawk requires serious mind games and reads on his opponent. He can't just rely on basic zoning like Ryu can. Hawk is a VERY high risk, high reward character. All of Hawk's moves are taking a major gamble, and once the opponent gets away, that can be the end for Hawk if they play smart.
A vast majority of Ryu's matchups are either even, or in his favor, and he enjoys so many luxuries which most characters don't have. Shoryuken type moves are kinda ridiculous in SF4, the fact that they can just be FADC'd on block makes them even more mindless.
To reiterate, I don't say this out of anger, as I very rarely lose to Ryu players (I have a 95% win rate against Ryu with Honda), but more out of boredom. Too many people just pick the easy way out and choose Ryu, knowing they won't have many bad matchups, or have to work very hard to win. It wouldn't kill them to try something different, eh?