A couple of different games I enjoyed:
Dresden Files Rpg - It is absolutely gorgeous, and I love the talk between Dresden, Bob, and Billy (who are the games creators). The system works well for what is intended. The system in Atomic Robo is the other gold standard for what can be done with FATE (and is also gorgeous, but has a different feel).
Star Wars Saga edition. It was what D&D 4e should have been in terms of crunch. The system gave you lots of ways that you could customize your character, and still felt much more Star Wars than FFG's games (I liked the WEG version as well, for the simplicity). However the official campaign where you were starting the rebellion, let's just say that some of the stuff there was so messed up it was beyond belief. I mean a Rancor-sized critter that had so much DR that only lightsabers could hurt it...
Buffy the Vampire Slayer - I love that you could be 1 slayer and the scoobies. It handled different power-level well. Helps that Buffy is one of my favourite tv-shows. The combat system was messy though, with the different manoeuvres.
Babylon 5 d20-version. I can't remember how much differed between 1st and 2nd ed, but I did like it a lot. We had a fun campaign in it.
Ghosts of Albion - Based on a fantasy series from BBC, and made by Amber Benson (Tara from Buffy). The idea of having the ghosts of Lord Nelson and Boadiccea/Boudicca helping the new guardians protect the realm was fun. The system is ok as far as I remember. Loved the setting, and the animated show from BBC.