Oh, the Tones black is NOT that bad.
Looks good with a black iphone. The purple Tones looks great with the white iPhone...doesn't seem to get dirty either. The Blue is okay on black. I agree that the other colors are not my cup of tea.
The slim armor black is a true black, HOWEVER with that SA case, it makes my iPhone 5 as thick as my 4S with a case on! That is just not right! The 5 with the Tones case is the same thickness as a naked 4/4S. That is NICE!
Plus the SA scratches way too easily, and I don't think it matches the naked 5 that well...the SA bevels are too large.
For the true black of the SA, one loses a lot (just my opinion, mind you), in the feel, look and protection of the phone (lip is too shallow). That is a lot to give up for a deep black color...or what ever color one chooses. If you get a lime green back, unless they protected the polycarb back better, it will scratch up and collect fingerprints the first day.
That is a big sacrifice IMO for a 'black' case.
I had the Magpul for the 4S. It is more rubbery, and a bit thicker, not much. I like the Tones since it is poly and TPU, but has a stiff feel to it...makes it seem like a factory part...and part of the phone. The rubbery ones are less attractive to me.
P.S. I dropped my Tones encased iPhone 5 from hip height onto a mall floor. Yikes. Case and phone survived with no damage or nicks.