Its hard to gauge the WOZ and the STLE because they have incomplete code, but I'm liking the WOZ more and more with every update. It is a super tough game with just an infinite amount of stuff to do. It just doesn't play as fast as the other two, but it when finished I think it'll be the deepest pin ever produced.
TRON gets better every time I play it as well, and I really like the flow.
I just didn't think there was enough going on with STLE. It just seemed to be all about modes, but here again, I don't know where it is with regards to code. Don't get me wrong it has great flow and it's fun, but I just think there's more to do in the other games.