I think the Vetex, AWE, Reiko combo proposed by the first two replies is probably best here.
Cataclysm’s broken destruction stat could likely just obliterate the arena, leaving all the fodder to be picked off by White Eyes. The only real threats to this duo would the three ridiculously high levels, with their ludicrous stats, and the sirens, which might be able to swarm you before the defenders can react.
Martin is out, since you can’t pick him along with the other two. The sirens probably wouldn’t work either, since one of the heavy hitters could just completely ignore them. So between Reiko and Adkins, Reiko would probably be the better choice on account of being controlled by a player.
The problem is, you are relying on alpha white eyes to do most of the work while the other two just do a bit of bonus damage. When the triple vetex and reiko calding die to the Martin and Adkins duo, the sirens can just pick off alpha white eyes from above (i am aware that he can probably fly but they are faster)
On the new WoM update, the items are uncapped, so…
Reiko is a lot stronger, and also, a lvl 300(max) Wall Of Jericho do 100% damage reduction, and with a power / casting build, Reiko haves a lot of chance against all.