Sudbury would not be anyone's first choice to play in the 2nd round as they have UPL. Ottawa's top-6 forwards are better and their depth is way better. Ottawa's top-4 D are better, way better, and all 6 aren't shabby at all. Ottawa has, statistically, 2 of the top 3 goalies in the league (with UPL being the other).
From a "load management" (cool new sports term I had to use there), UPL has played 3,078 minutes and faced 1,597 shots. DiPietro has played only 2,174 minutes and faces 978 shots, Andree only 2,634/1,209 (all reg season stats). If it comes down to goaltending (which I believe it will not), Ottawa has a ridiculous 1-2 punch, both of whom are far fresher than UPL.