I think the biggest win in QU's short ECAC history to date has to be the 2nd game of the sweep of Cornell at Lynah in '07. Did anyone think we'd win either of those games?
Next would be the 4-0 drubbing of St. Lawrence in Albany that same year.
The inaugural ECAC victory at the Civic Center against Harvard has to be right up there as well.
After that, I agree with Quinn57: any Yale victory.
Then you have to consider all the first-round ECAC playoff wins.
UMass last night was a great win and probably is worthy of the top-10 in program history simply because it was a victory over a top-10 team.