JLWs are very good, JLFs are amazing.
I will basically never go back to HAPP parts after playing sanwa. Heres how the joysticks go in my house: My control panel has on my cab has JLFs, two PS2 joysticks with JLFs, a Custom PSX stick that has a JLF, and one PSX stick with HAPP parts for playing marvel.
If you like playing fighters, Sanwa is the way to go and even for old school games (Ghosts and Goblins, Gradius, etc.) The precision on the Sanwa is great. I can't stand trying to play Shmups with a HAPP, but can dodge everything on Sanwa