I like the Saitek X52 Pro, although it is expensive.
Reasons:
1. Firm spring action that centers the stick when you take your hand off, so no drifting.
2. Dual trigger. Apparently I'm the only user who likes this feature, but I'm sold on it. I squeeze lightly to fire primary wep (energy), and more firmly to fire secondary (flares). Enables me to fire a flare at just the right moment with minimal movement.
3. Hat right under thumb (I use for strafing), plus several buttons within easy reach of thumb (I use for toggling F/A, turbo, various other functions).
Both Ecka and Lisa use this stick, also Conflict diamond I think, but their setups are different from mine.
-- tsreknor