I'm dying to know, are there any competitive players that prefer controllers to sticks?
I just can't get into using fighting sticks. Is there an undeniable superiority to the control scheme, or is it a throwback to arcades and purely preferential?
There are a few, Wolfkrone is one and he plays Street Fighter with it, which is quite unusual. For MK players, an awful lot use controllers.
The main thing with sticks, is that a lot of the notable fighting game scenes are US based and many of the players grew up playing in arcades, so that is what they're used to. You'll find more Europeans on pads compared to US players for instance.
Use whatever you feel comfortable with.
EDIT: More Europeans using pads compared to Americans using pads I mean, not Europeans using pads more than sticks.