Nice list, Sly is definitely something I want and i'll more than likely end up avoiding Batman now.
Heres mine not that I played a huge amount of games that came out this year, a lot I played was 2012
Best of 2013
1)
Muramasa Rebirth - Gorgeous visuals, great combat and extremely compelling stories for both characters.
2)
Tearaway - Wow, what can I say, this game was worth the wait. An all round charming game with one of the best soundtracks in recent memory. A superb platformer that drew me in and left me smiling from ear to ear. One where upon completion I really felt sorrow at having finished my journey with Iota
3)
Jak and Daxter: Precursor Legacy (havent played 2 and 3 yet) - One of the best 3D platformers I have played, only bettered by the Mario titles and now Tearaway. Great worl, likeable characters, funny etc this is a superb game and imo Naughty Dogs best.
4)
Thomas was Alone - A great puzzle platforming gameplay with more character than most games even though they're only blocks! Excellent story and narration
5)
Limbo - Stylish and compelling. Some great sequences and devious puzzles towards the end.
6)
Guacamelee - Enjoyable Metroidvania stule game with great combat. A bit sort but what was there was great.
Worst of 2013
1)
Dragons Crown - After loving Muramasa I thought this might challenge for my best of 2013 but it just didnt do anything for me. The combat was not enjoyable and the game left a lot to be desired in comparison to Muramasa.
edit - Thought Lego LOTR came out in 2013, but that was the iOS version, so removed from my list.