I've got a blue Sanwa bat-top here, its cool, but I never really got into it, I prefer both the P360 and a JLF with a ball top to it.
If you like the bat top on the JLF though, you may want to try it out on a Seimitsu LS-32 series stick. Seimitsu makes a round restrictor plate for the 32s that would help get closer to the HAPP feeling. Sanwa also makes a round restrictor for their JLW line, but I haven't had a chance to mess with those sticks myself.
Of course my fave will always be the happ P360. If you like the feeling of the Sanwa being easier to tap, you might want to try one with a softer spring. I just scored a P360 MAS on craigslist a week or two ago, the spring is def softer than in the cades and the thing plays like buttah. Too bad its near impossible to get it to fit in most commercial cases.