Go V/P two queen rooms. There are two queen beds and a sofa bed so each room can comfortably fit 3 grown men each. V/P has great restaurants too. I think their rooms are pretty affordable right now too.
I think the choice of the executive suite at MGM is good, that gives you a room with a bit of living space to gather in, have stayed in it twice myself for that reason. Like mentioned above, I would also consider Venetian Palazzo, all their rooms are suites that you can do 2 queens with a separate living space for gathering that also has a pullout queen bed from the sectional.