Happ Competition with Convex Happ competition buttons, Higher quality than the Super stick, and the buttons are much nicer than Concaves.
My actual recommendation would be Sanwa JLF sticks with Sanwa OSBN buttons, but most people here are fans of american style parts over Japanese. For me its Japanese all the way (I've got 1 HAPP Stick for the sake of Marvel, and the other... 5 or 6 sticks in the house are all japanese)