Arcade stick-wise, I just have a couple of Mad Catz Tatsunoko vs. Capcom sticks that I use on my PCs with a Mayflash Classic Controller USB adapter. One of them has been modified with a Seimitsu LS-56-01 with octogonal gate, which improves the feel quite a lot. I'm currently trying to decide if I want to plunk down for some OBSF-30s or not, though...never been particularly fond of Japanese-style pushbuttons because I want that tactile microswitch feel (and yes, I know about the Sanwa OBS-30A/30B, but good luck getting those!), but Happ/iL make their buttons way too long for some reason.
Ideally, I'd have a custom case to have the best of both worlds (Seimitsu LS-56-01 and iL pushbuttons), all driven by one of those MC Cthulhu boards, but most cases aren't built to mount mixed parts-they're either all Western or all Japanese. Pre-existing custom cases don't seem to fit that requirement, so I'll have to learn some woodworking and go truly custom.
Flight stick-wise, I'm pretty loaded. First and foremost would be my highly modified Thrustmaster HOTAS Cougar; FCC-1 mod for the stick (makes it feel more like a real F-16C stick, but does NOT go well with twitchy propeller aircraft) and replacement screws, Hall sensor and UTM bushings in the throttle, and a Thrustmaster RCS with a Hall sensor mod slaved to the Cougar. I bought it specifically with Falcon 4.0 in mind, but it goes well with space "sims", too.
But because of that Force-Controlled Cougar mod, it doesn't match up very well with propeller aircraft. That's where I break out a red/2nd-gen Microsoft SideWinder Force-Feedback 2 and use that as my stick. The games I play with it aren't hindered by the relative lack of buttons and switches (except for DCS: Black Shark), and the sheer precision plus smooth centering forces relative to other FFB sticks are hard to beat.
Then there's the two Logitech WingMan Interceptors I can't use on modern computers because of the digital gameport interface that no USB adapter currently supports. I do use them on older computers, though...probably the best sticks Logitech ever made. Ergonomic, precise, and the sticks themselves are loaded with three hat switches, three buttons, and a two-way rocker, as if to compete with Thrustmaster and CH Products offerings. All they really need are a rudder twist and USB support...
Finally, I could bring up my PlayStation Analog Joystick (SCPH-1110) and Saturn Mission Stick, neither of which I've used too much at the moment. The PS1 doesn't get a lot of playtime, and most of the Saturn's noteworthy games are generally arcade ports that make more sense with an arcade stick. (Too bad I don't have a Saturn-compatible arcade stick...time to go forward with that custom arcade stick project, even if it pushes back my plans to get a taste of electrostatic sound?)