Best pinball of the decade, hmmm. It's not JP3, imo. Iron Maiden? Metallica? I love those, and a Pro for both makes up my current lineup - they'd probably get my vote, but music pins and those themes in particular aren't for everyone...
JJP games are nice, but honestly I don't really care at all for WOZ. It's certainly a beautiful pin with a lot of substance packed in though.
I don't think you can crown a single pin. Can't be all things to all people...