I have tried:
Happ Ultimates (8 way)
Happ Super (4 / 8 way)
T-Stick Plus (4 / 8 way)
Sanwa (8 way)
Wico micro (8 way)
Wico leaf (8 way)
Wico leaf (4 way)
My preferrence is the Wico Leafs. They have a nice feel, smooth action, springs back to center, tension seems better, and they are quiet.
Read the rest of the posts, we all have our preffered sticks.
-Goz