I have the pink Tech21 impact mesh and my husband has the Otterbox Commuter.
I really, really like mine. I like the way it feels and I like the way it looks. I don't know anyone else that has one. And I especially like staring at it in the sun, lol.
My husband's Otterbox is so ordinary. That's all I can say. Very common and completely non-unique. He thinks it's fine, but he's not excited about it.
As a matter of fact, I'd really like to get the blue Tech21 impact band also to switch it up, but I hate the shipping fees from the UK (which is the reason I haven't ordered the blue Musubo Diamond case that I also want from Hong Kong either).
Anyway, the Tech21 would be my recommendation if you want to be different from everyone else. I love it!