Almost noone using an arcade stick (hori real arcade pro / Street fighter TE )?
I do. Some commands are easier on a D-pad, f.ex a simple F3. The buttons on the ps3 controller (using dpad) are similar, while on the arcade stick, you have to move the stick to say right, and press the button 3. But on the other hand, having control while playing, I find the Arcade sticks really good, you can ALWAYS blame yourself all the time. And its great comfort to play with.
I have both a Hori real arcade Pro 3, and a Street Fighter TE. They are both the same. Same components also, so you have high quality feeling. SF TE only looks a bit better.