Hamil was fantastic as the Joker, though, as pointed out already, he always is!

I too enjoyed the Visari-Radec combo from Killzone 2, I thought they were a fantastic pair of villains, whilst those from KZ3 just weren't quite as good. Though I thought KZ3's plot was much weaker overall. It just wasn't as well focussed, in my opinion.

Beyond that, I think GLaDOS was pretty darn great in Portal. She just came out of nowhere and felt very fresh, though she's now sadly been ripped off countless times. Portal 2 was a similarly strong showing, but for very different reasons.

A big mention for Vaas, whose characterisation was excellent.

Though there are clear weaknesses to the plot and pacing from Bioshock, I really enjoyed the twist in the middle, surrounding Atlas and Fontaine. It made for a big "Duh!" moment, which I really liked.

Oh, and finally, props to OK for his work on Heavy Rain, playing himself. Loved it.