Quoted from Concretehardt:Every line up needs a fast & brutal game like Tron or IM cause sometimes you don't want to play a 15 or 20 minute game of pinball.
I never want to play a 15 or 20 minute game of pinball. Seriously, all my games get set up crazy nasty because of that.
Having said that, I vote for IM all day every day. The game is straight up nasty. Every shot can be hit safely, and every shot can be a drain if you don't hit it just right. For everyone who says that IM is so random, I argue strongly that it isn't - it's just that if you hit even a hair off, you are in trouble.
Having said that, Tron has a lot of the same qualities. It has a lot of depth, and is also ultra fast. While I will take IM all day every day, Tron is a top 5 game for me still.