I actually DON'T like to play on 762, because of the current controversy, and because it doesn't give official stats and Awards, but firstly, HSLAN is ALWAYS full, and whn it isn't, I tend to find the Teamplay a tad lacking - I think its mostly newer people.
With 762, it has mature, dedicated fans, so the teamplay aspect has grown quite significanty. That's the only 2 reason you would catch me there... If HSLAN didn't have that issue, and was less often completely full, I would play there ALL the time