I love the first one. it has some really nice effects going, the text is okay, though it could use a change of font. As for the other two, the killzone one would look better without the secondary text, it has some nice effects going and a nice clean focal.
The venom one, deffinatly needs new text and a full 2 pixel black border it has nice effects again, but could use a few more, seems a little blank on the effects side compared to the other two and the smudgework in the bottom right could use a little work.