By Alek Arend Josh Allen and Patrick Mahomes put on a game for the ages, but only one could emerge victorious on Sunday night. Mahomes and the Kansas City Chiefs will host the AFC Championship next weekend after beating the Bills 42-36 in overtime. The game ended when Mahomes found Travis Kelce on a back-shoulder throw to the side of the end-zone. As expected, Arrowhead erupted in chaotic fashion at game’s end. But Mahomes didn’t get caught up in the frenzy. He, instead, sought after Allen to congratulate him on a sensational performance and wish him well. Allen was taken back by Mahomes’ clas…