I have a few arcade sticks, but nothing too fancy.
I have an X-Arcade Solo modded with bright green Happ Competition Buttons and an iL-8 Eurostick. I have adapters for the Gamecube/Wii, PS2, PS3, Dreamcast and PC. I like it for older fighters that don't have a double tap dash move. I grew up on Happ parts so it feels very natural for me.
I have 2 Hori Arcade Sticks for Wii, to accomodate all of the SNK love going on there. I love these sticks. The sticks have more resisatnace than the usual Japanese-style stick but not as much as an American-style stick.
I have 1 Hori FS 3, bought for $29.99 at Gamestop. (Advice: Check the out-of-the-way stores; they sometimes don't remember to change price tags.) It's taken awhile to get used to due to the looser stick but it's grown on me. I may get an HRAP 3 and pass this one on to my wife, but I'm tempted to wait and see if the SFIV stick is more appealing.