As stated above, you're the one looking at, playing with, and most importantly paying for these chips - pick what you like!
Now, that said - since you've asked
1) Definitely the brown chip shouldn't have a blue edgespot; anything brighter is better
2) Best choice is to dump brown altogether - with orange you can keep those edgespots
What I'd do:
Something about the pink on black...I just like it. Anyways, have fun!