It's not just the series against the Hawks two years ago - Chicago last season as well. We struggle against young, athletic teams. That's proven to be the case even more dramatically this regular season. They've matched up very well against us in recent seasons, and we're getting older and less athletic while they're getting more confident and more experienced.
I'd say it's pretty close to 50/50 who wins a seven-game series, and given that we're likely to be on the road... that might be optimistic.