Entry no#5 gets the vote
#1 was kinda random, with random colours but nothing really happening there
#3 is quite nice but the render sticks out so much, and it's kinda simple in the background, plus the big borders
#4 looks ok, but it relies too much on render alone for "action" and flow, plus it's quite monochromatic; great flow though
#5, I really love the depth of background effect and the small text; there are some problems with lightning and depth around the render, plus the border though; to sum up, right part is great, left part is kinda meh