Call me weird but I like the color combo of 2 - 5. To me, using a lighter color here and there really makes the bold ones like #2 pop out more.
I like the first variation of the pattern grammy Dwynn posted and would use colors 2 - 5 as my choice. With #5 being used the least.
Hard to say without moving them around and playing but I would use this order (next to each other)
#2, #4, #5, and then #3