Quoted from 85vett:
I'd keep TWD as it has a different layout than most of the others (Fan). That can help keep interest in your games and if it's to drainy for you to have fun close down the outlanes and adjust it to make it fun.
For me it would be an easy and hard decision.
Easy - Would be MM or AFM since they are fairly similar in play
Hard - Which of the two it would be. I would probably put them both up for sale for the high side of market value. Which ever one sold first would go and I'd keep the other.
I find it interesting that so many people suggest keeping TWD over almost every other game, yet it's rated lower than most games it is pitted against.
Maybe the ratings are weighed down from when the code was sort of shitty, or maybe people just like how punishing it is.
I'd say 70% of the time, I want to flip the game on it's side and just smash it to bits like that printer scene in Office Space. But the rest of the time, where I'm in Horde and trying to get as close to LMS as I can, the game is pretty intense and awesome!