Best Console: PlayStation 3
Best Handheld: PlayStation Vita
Best Innovation: Gravity Rush. Hardware innovation is meaningless to me if nobody is doing anything interesting with it, and this game was one of the very few that made me look at the hardware it was running on and think, "I could only play a game like this with this hardware, and it is FANTASTIC."
No pick for best or worst developer, since just about everyone managed to succeed and fail in equal measure.
If I'm trying to narrow it to top 10, I can only frame it around which games sucked me in so much that I didn't want to stop playing, and sometimes even started a 2nd playthrough immediately after.
1. Mass Effect 2
2. Nier
3. Tales of Xillia
4. Dead or Alive 5
5. The Witcher 2: Assassins of Kings
6. Ninja Gaiden Sigma 2
7. Valkyria Chronicles
8. Deus Ex: Human Revolution
9. Gears of War 2
10. Resident Evil 6 - Undoubtedly a VERY controversial choice.
Honorable mentions: Shadows of the Damned, Uncharted, Heavy Rain, Catherine, Assassin's Creed II, Bayonetta, Lost Planet, Tales of Vesperia, BioShock Infinite, Dragon Age, Mortal Kombat, Dishonored, Skyrim, Gravity Rush, Persona 4: Golden, Diablo III, Star Wars: Knights of the Old Republic, various Cave shooters