My preference (if we beat Dallas) would be to play the Clippers. We nearly beat them on the road a few weeks ago, I think they are a good matchup for us, and it is the easiest road trip, coming off a home game in Sacramento two days before.
If not the Clippers, then I see the Grizzlies, Wolves, and Nuggets as nearly equal options, but would probably rank in that order of preference. They are all distant road trips (or have unique challenges like Denver), but I think we matchup well with Memphis, decently with the Wolves, and the Nuggets may be in some disarray.
Warriors would be my last choice. It would be sweet to knock them out, especially since they are talking title, but that would be the hardest game, despite the easiest travel.