Definately doesn't matter one bit. I know a few old timers that think it is critical NOT to have exactly the same pattern on top and bottom.

Just so long as your color tones are 'earthy' and you can hold still at the bottom of a fair sized tree to break up your outline you'll kill the snot out of turkeys. If you get profiled then it doesn't matter how good your camo is or how 'with-it' your fashion style is.... you'll get four sharp and gone.