BFTK (MM) is my favorite to play. It is achievable and fun to play. I love to start Royal Madness and then BFTK.

You didn't' ask but RTU (AFM) is more enjoyable to get to than BFTK but just get x points and you Rule the Universe. Its cool the getting multiple super jackpots in a game makes this easier.

Tour the Mansion (TAF) is just mega points so more like a reward than anything you complete. Same with LITZ and Monsters of Rock (MB)

Wh2O is fun to get vacation jackpot but not a wizard mode the way I think of it.

I like Getaway but can't remember if Redline Mania is the wizard mode.

And the early solid state wizard mode (flipping the game) never gets old.

I failed in Encore the one time I was there so can't comment but hard to get to on factory for me.