I don't know if I'll get 5 out, but here we go!

Mutant Epoch - It's a great game for nonsensical Mutant apocalypse. Random Character Generation can get you some pretty crazy trout to play with, and potential monster encounters are great, like the lazer spitting Veloca raptor, or Amphibious Psychic Sharks.

Anima: Beyond Fantasy - Were it not for the unbelievable amount of effort it takes to teach a person this game, and the effort and time it takes to run, I would play this game so much more. In spite of the issues with overly vague guidelines for some abilities, and some things offering you no guidlines what so ever where they are desperately needed, the game runs amazingly smoothly, and the customization compared to other systems is insane.

Pathfinder: Fixed pretty much everything wrong with 3.5 DnD, Pathfinder is pretty much my current game of choice. So many fun ways to play all the different classes, a lot more customization then 3.5 had, vastly improved Skill system, and all the weaker classes became far more viable.

Also it has the Inquisitor, my new favorite class.