I like DH a lot. It's a real shooters game because of the tough shots. Like others said, make sure the flippers are strong. I had it in a single game collection for awhile and it was a ton of fun. Clint Eastwood also did all the callouts for the game which is a nice bonus.
Tough choice with all those options. I'd pick DH or DM. I don't think you could go wrong with either.
T2 will get boring. Just isn't as deep or fun to shoot as the other options. Almost never got played in our collection.