This one is tough for me, because there's definitely 4 least favorite games, and one game that simply annoys me.
Pay the Rent: This one tops the list easily. Too often, the contestant will stop at $10,000 because it is damn near impossible to win the grand prize of $100K. While I get that this game is like a puzzle of sorts, the majority of contestants will not realize that and just try to pick the more expensive prizes as we ascend. Plus, the "secondary" prize for this game is the grand prize in "Grand Game"? Yeah... take the $10K and run.
Time is Money: How often is the $20K won on THIS game? Almost never. In fact, how often is this game even won with any money? Also not often. This is one of the more frustrating games to watch and plays like a more chaotic and disorganized version of "Race Game."
One Wrong Price: Of all the quick-play games, this one has always rubbed me the wrong way because isn't the point to get the prices... right?
Double Cross: Another game with a ton of buildup and rock music that feels unnecessary. This is like a quick game that doesn't play like a quick game.
Cover Up: I do like this game... when it is played the right way. Years ago on the old atgs boards, I feel like this game was discussed at length because one contestant seemed to try and miss all the numbers on purpose... only to actually miss all 5 numbers on the first go. As Drew states, "You only need one number right to remain in the game." I've always felt that the "right way" to play this is get the first number right, miss the 2nd one on purpose and go from there. This act alone increases your chances of winning the game. When I see contestants try to get all the numbers correct right away, that annoys me when they later wind up losing.