Both can’t decide

I like Alex and Zach the best though Justin and Clay are close behind

Both of them,Alex and Zach take care of each other, they are incredible friends, Justin and Clay,well, they started as enemies, but with the time they learnt to get along and they get a string more stronger than blood, and a brotherly relationship,and Justin thought that Clay was a positive influence for him, and Clay that he was the reason that he had survive.

none, zach did not value or appreciate alex besides the fact that love and friendship crossed. And clay always treated Justin like shit, I just can't buy the story that he saw him as a brother.