Despite Wallace only playing 1 game in season (not that great of a game either) hes always been a good multi-category fantasy player. Hayward is averaging 14.1ppg, 3.4rbg, 1.9apg, 1 spg, .7bpg, 1.9to, .7 threes, shooting 44%fg and 78%ft.
O.J. Mayo no need to say anything about him. Hes just killin it right now.
It really depends on what kind of format you are playing but I would personally take Gerald Wallace and Gordon Hayward. Mayo will be as effective all season long, but his scoring numbers could drop just a bit once Dirk Nowitzki returns.