There's been some discussion on Twitter about whether winning the division is a good thing. As #1 seed in the Metro, they'd likely play Tampa or Boston (who have been battling it out for the first wild card/3rd seed in the Atlantic), versus a 2nd/3rd seed in the Metro which would see them face Pittsburgh. It's also possible, though less likely that they could face Toronto in the Atlantic.
The thought is, that facing either Boston or Tampa would be harder than facing Pittsburgh. Think they'll all be potentially difficult to be honest, so not sure it matters, but it's at least being talked about.