Used millions of sticks from crappy bargain basement stuff in my Chuck Yeager days to something reasonable, and everything in between.
I live in the Netherlands, not much choice there if you want a good flightstick.
Basic requirements:
Fully programmable
View hat
Throttle
Twist (for rudder)
USB is also nice because under XP my game port won't work.
When I started to fly Jane's WWII fighters a while ago (it was already an old game by then) I bought a Logitech Wingman 3D. Nice and heavy, solidly built, good software. This is the stick I started AH with. Sadly, after not even that much use the rolling axis became bad. Now I have a Logitech freedom 2.4 cordless. Nice smooth stick and unbelievably cool looking

Still, the best stick I ever used was the Gravis Phoenix. Big ugly, plastic, fully programmable thing with rudder, throttle and millions of buttons. Sadly the thing is ancient and the software is hopelessly outdated. Still, the smoothness and (adjustable) feel of that stick is second to none. If it would work with AH I'd still use it.