Best case for protection that isn't big and bulky..preferably looks sexy too??

[solace]

Atmosphere Poetic for sure:

http://www.reviews4i.com/2012/10/poetic-atmosphere-iphone-5-case-review.html

edit: it comes in white too: http://www.yourpoetic.com/p/333/atmosphere-iphone-5-case-clear-smokewhite