what is the difference between these two roms?:
AOKP ICS ROM v7.1 for AT&T Galaxy S2 SGH-i777! [Best ROM] | Galaxy S2 Root
ShoStock ICS ROM for AT&T Galaxy S2 SGH-i777! [Best ROM] | Galaxy S2 Root
AOKP ICS ROM v7.1 for AT&T Galaxy S2 SGH-i777! [Best ROM] | Galaxy S2 Root
ShoStock ICS ROM for AT&T Galaxy S2 SGH-i777! [Best ROM] | Galaxy S2 Root