I'm a big fan of Town Ballroom and Rapids Theatre; really liked Mohawk Place as well (it's a shame the venue closed). I have yet to check out Waiting Room, but that appears to be their premiere mid-size venue. The Outer Harbor would be ideal for this show if it happens, given it's capacity.
I went to The Waiting Room for the first time last night, not bad. It's better than Infinity, but I like Town Ballroom's setup more.