Mount Gerizim and Mount Eval
Parasha Ki Tavo
Mount Gerizim to bless the people: Simeon, Levi, Judah, Issachar, Joseph, and Benjamin.
Mount Ebal for the curse: Reuben, Gad, Asher, Zebulun, Dan, and Naftali.
Was there any rhyme or reason as to which brothers were chosen to stand on which mount?