Amen, shinblanka.
Tournament results are useful, but only for finding out the Top tier really. After people quickly figure out the top tier, a lot of folks stop using the other characters, so it can be hard to figure out their ranking if you really want to use tourney results.
The true way to find out the tiers would be to gather the best players for each character and make them all play a massive round robin tournament with 10 games a match. However, this is impractical. We must rely on theory and examination of each characters tools versus the others.
Oh, and I’ll chime in:
S: Akuma
A: Sagat, Boxer, Claw
B: Dhalsim, Ryu, Guile, Dee Jay, Chun-Li, Honda, Dictator
C: T. Hawk, Blanka, Ken
D: Zangief, Fei Long
F: Cammy
That’s just my opinion. Keep in mind though that I think that the tiers are pretty narrow and are heavily match up dependent.
I suspect that I’m wrong about Fei-Long in particular. It wouldn’t surprise me if he ended up being at least high mid. His new short chicken wing is pretty potent and very safe. Hell, if he could still combo fierce into rekkas after a chicken wing I’d nominate him for high tier.