Don't know your age - but I would think that QM passengers would be on the older side - there is a group that arranges GLBT groups on QM2 - see
http://www.piedpipertravel.com/gaygr...e-calendar.php . Might be better than taking one of the "regular" crossings.
We've never done a crossing - on "big ship" cruises we usually do Regent now usually with a "regular" group that we've gone with a few times. On "small" riverboat cruises - where the demographic tends towards older, we've only been on GLBT charters and they've been a lot of fun.