Why does the iPhone 6 look so ugly?

I can't help but notice how ugly those lines on the back of the iPhone 6 look. It makes the iPhone look fugly. I thought Apple was supposed to make nice looking phones? The 5S is the best looking phone ever, it look very premium and nice looking.

Added (1). I usually don't wear a case on any iPhone I own, I probably should though, the iPhone 6 is too slippery

I like it

IPhone 4S and iPhone 5S are pretty awesome and best models made by Apple.