I've owned both JM and WCS. In fact, I've owned numerous examples of both over the last couple of decades.

WCS is a better choice.

I love JM. It's fast, sound effects and music are incredible. The call outs are so bad they are good. Where it falls apart are the rules. The ONLY way to get a great score is to get the spinner lit and max your playfield multiplier. Playing modes is a waste of time, playing the multiball is a waste. It's a real shame as the wizard mode is outstanding. For points though, only the spinner strategy works and that gets frustrating.

JM is such a blast to play. It's the fastest Williams DMD by a long shot. I love playing it, but the rules are so poorly implemented.

That said, in a home environment, you don't have to go for points and can explore the modes and wizard mode. And it is fun which is why I have owned several and would own it again.

So why WCS? WCS is just a great value game that is a blast to play. It's a super inviting game as well and is a favourite among new players and kids. Just mention that in case it's a consideration. The music and GOAL call out really gets your heart pumping. It's a good looking game and just pure fun.

Honestly both are fun and you really cann't go wrong.