I think you have great options. I have the other JJP games except pirates. If you have narrowed it down to Woz and DI. Please consider:
My RR had the new 2.0 light boards installed, so with this my woz has a pretty decent value. DI is much less in price and I love that game. The disaster modes are top notch in my book. I also have Wonka and with the new code I really enjoy the variety in shots random ways to play it.
Woz does have the big moments as previously mentioned. If I can melt the witch I feel I beat the game. I have less than a 10% success ratio in that reguard.
Good luck.