http://papa.org/learning-center/directors-guide/?target=game-notes

If you look in the "Tournament Concerns" column, it does a good job at explaining why certain games aren't used in Tournaments.

For example, Dr. Who reads:

The video mode can potentially be a safe way to earn lots of points in Doctor Who, meaning players who employ this strategy will take a very long time and generally not play much physical pinball to go along with the video modes. Unfortunately, there is no way to speed up or avoid the potentially repetitive video mode process.

Advanced players may be capable of looping the side ramp with such ease that the game will play extremely long.

Doctor Who is an acceptable choice for juniors or less-skilled divisions, but it is not an ideal choice for events where higher caliber players will receive repeated opportunities on the game.

Big Bang Bar reads:

Lopsided scoring and tends to be a long playing game in a competitive environment.

And for T2:

Terminator 2 software contains bugs that can potentially be devastating to a competitive game. Known bugs include: 255 drop target hits to multiball, and a multiball bug that may occur when a ball is locked with zero seconds left on the timer causing a string of odd behavior from the game.

Not a reasonable competition game due to carry-over of thirteen ball countdown feature.

People exploit repetition all the time. Earthshaker's center ramp can be shot 99 times, and each ramp shot afterwards is worth 250K. Some don't mind the wood chopping adventure for high scores, I guess.

Lights Camera Action's Catch up feature is super rare. Of all hundreds of multiplayer games I've put on it, I've only seen the award given twice, and you can easily disable it in the settings if you want. It doesn't have a double your score feature.

The problem with Lights Camera Action is that it awards million points and extra balls as a mystery award for winning the gun fight, and it does so far too frequently. One workaround I've found is to put the game into Add-a-ball mode and turn down the extra ball percentages down to like 5% in the settings. Then extra balls become super rare. Millions are still awarded pretty frequently though.