Gamma World is a post-apocalyptic game set in an alternate reality where mutations are the norm and resources are scarce. Character generation should only take 5-10 minutes as everything is either completely random or pre-generated. Your ‘race’ is determined by a primary and secondary mutation combination. This means you will be playing an Android Cockroach Swarm or Yeti Plant. You only start with two powers so the book keeping is really simple.
Star Wars RPG Saga Edition was released in 2007, and uses a heavily modified version of the d20 System. Sometimes called a “3.75″ system, it has many of the good features of both 3.5 and 4E D&D. The Saga Edition has excellent class design and balance, such that Jedi do not dominate the game and all characters are useful. The rules are very strong, with combats resolving quickly but satisfyingly, and there are excellent rules for starship combat that are easy to get the hang of.