I own both. TZ was my first pin and Wonka is my second. I play Wonka a lot more nowadays and it is certainly broken a lot less often than TZ (which is a factor to consider. A LOT can go wrong with TZ, but this is balanced out some by the fact that the game has a huge support base as well). Wonka is also much more approachable for the average person than TZ is, even though the Wizard modes are actually much more challenging to reach and beat than TZ. Wonka is an amazing game and one of the best shooters of modern times.

All that said, TZ holds a special place in my heart. It was my favorite pin in college. I love the theme, the play, and the callouts. I can not see ever getting rid of it.

It might be better, OP, if you were more specific about why the two are in competition. Are you considering buying one or the other, or is this just a "who's hotter?" style showdown?