I went to the dealership this evening and looked at all the colors. I was really focused on the Summit white, quicksilver metallic, and Iridium Metallic. I must say all looked great, but for me (One who keeps a vehicle for 8+ years) I really want to get the color I can live with the longest. That led me to going with the Summit White. The Fire Red, looked amazing too, but I may get tired of that red. Iridium would look the best clean IMO, but for me keeping it clean would be tough. I currently own Silver, so I won't go back for fact I wanna try something new.
I use to have a white 2 Dr. Chevy blazer with chrome wheels and I loved it.
I'm waiting to pull the trigger on the 2014 Sierra, SLT, 4WD, White, Standard bed, with dark interior, 20"Chrome wheels, and power sunroof.