A few thoughts:
Manroon - that Corran Horn costume is incredible, well done!
Shyguy - I love the Dark Shock, and the Starkiller outfit is totally badass looking. Bonus points for posing with the hot Darth Talon wannabe
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Kham - you may look like Rob Schneider, but I don't know too many people who can pull off the "leather jacket over Spider-Man costume" look that well. Lightsaber + Spider-Man costume + leather jacket = supreme coolness (at least to us fellow nerds)
Overall, awesome pics... way to make me more jealous