Out of those, Space Gray.

Silver.

Slate, but Apple is too much of a flop to go back to that color

I ordered the silver. I wish there was a space gray with a white front available

htc one m8 gunmetal grey. slay.. not this ugly flop

I really liked the all white look of the 4/4S. I have an iPhone 5 that's white but it was the silver backing which I don't care for too much. I think the gold iPhone 5 was so popular because it was a drastically new option.

When I get the 6, I'm not sure which one I'll get. I suppose it'll be whichever looks the best in person

Gold > Silver > Space Grrey

Silver.

Gold

I have space gray though, gold is too gay

I think they all look really good. Gold looks better on the 6 than it did on the 5S. I have the silver 5S and I think it looks good, but I think I should have gone with Space Grey. Black is timeless and the space grey color is flawless.