As an avid arcade player, I feel I must vouche for the ol' sticky, but these days, due to budget constraints, I'm playing less out in the arcades and more often at home. I can use both just fine.

But I can't use the analog stick on controllers for fighting games. It feels really slow for me to be doing backdashes and quarter circles/half circles. I always use the directional pad when I have a controller. I don't know if I'm unique in that respect, but I also avoid the analog stick for racing games.

I've always had a poor time with qcf/hcf from 2P position in the arcades (and therefore, also qcb/hcb on 1P). It's not that I can't do it, but the movement just comes out a bit clunky.. and how should I say.. deliberate. e.g. Lee's/Law's Dragon Slide. I try to avoid it when I'm facing left. There's about a 10% chance he'll just shudder and do a piddly low kick.)

btw ee: Soul Calibur's movement system is a little different. It's called 8 Way Run and any directional input sends you in the direction. No need to double tap to move back or sidestep like in Tekken. I find that I like it a lot more.