The Build worked through the end, but there may yet be some room to optomize.  I added a 5th LT, but I'm wondering if that nearly 20 DU could be better spent on other things???  Will need to continue to test.

This looks legit the best option so far! Lots of kills per wave.  Final wave has 3,600 enemies, which is great.  I've gotten about a dozen Ult drops per run.  For some reason they roll kind of poorly, even the Ult++ drop we got was shockingly bad, so not sure what is behind the data, but that would make this option a red herring.

Towerbooster will need a handoff and cooldown mid-wave, so use the DPS monk to offer relief.

Party: 1 Tower Boost Monk, 1 DPS Monk with decent TB stat, 2 Summoners with Guardian Pets (Huntress/Monk)

Hint 4: I stand my DPS Monk here on top of the gargoyle to pwn the Goblin Copters like Batman