Yep its a Sanwa JLF with the bat top adapter.
As for the JLW...I don't know. I honestly haven't had any experience with it. But I will say I prefer Happ sticks to the Sanwa. They feel alot more solid and fluid.
I use Lizard Lick Amusements for my Sanwa stuff. Great guy to deal with and keeps the communication going. I'll be getting all my Sanwa stuff from him.
As for Happ. I get from divemaster here on the arcade controls forum. He's got a thread in the Buy/Sell/Trade section that has a list of prices. He's good to deal with. Just tell him what you want, he'll send you a quote, then you just paypal him the amount and the quote number and you're good.
After building happ and sanwa sticks now....both have advantages and disadvantages.
Happ is bigger and takes up more space, but in turn lasts a lot longer and feels more solid.
Sanwa parts allow you to build much smaller cases, but they feel very light, clicky and just don't feel as solid as the Happ stuff.
For a set of I think 8 Happ buttons and a joystick, cost around $20.
Same quantity with Sanwa, you're looking over $50.00 easy. But Sanwa has alot more color options and styles than Happ.
So its a trade off.
Me personally, I prefer Happ because I have big hands and want my arcade stick to handle some abuse. It feels more responsive, doesn't need any adapters for smooth rotation, and is more cost effective. But alot of people like Sanwa. I can kind of see why...but like you I grew up on Happ. Go with what you like and are familiar with.
Mix and match if you want as well. I plan on doing that with my personal joystick. I'm gonna use a Happ stick, but Sanwa buttons. That way I can build a more shallow case.
Lemme know if you need any help or ideas. I'll be glad to help any way I can.