I compared the two this morning and....want to take a guess?
To my surprise I favored Too Faced Bronzer! I am a huge fan of Kim Kardashian and think she is amazingly beautiful, so I am completely shocked that I still preferred my bronzer pick over hers!
Bottom line: The colors are similar...almost identical. However, Too Faced is much more pigmented and goes on smoother than Smashbox...just a little! With Too Faced, even though the bronzer is matte, your skin will absolutely glow after application simply because of how smooth the product is. You can layer this bronzer and thus achieve flexibility in color. And a huge perk on top of all of its great qualities, Too Faced bronzer smells and even tastes (but you didn't hear that part from me) AMAZING!
Smashbox is a nice matte bronzer too but is not as pigmented as Too Faced. Some of you may prefer that, but I like to work with a bit of pigmintation. Also, although it looked good as far as color went, my skin did not look like anything special after application. It was just a normal bronze contoured face...very every day, very regular, not bad, in fact good, but not better than Too Faced. :-)