Depends what happens with Worcester - their run in isn't the easiest. Sale at home today, followed by Gloucs, a trip to Northampton and Sarries on the final day. Newcastle have Northampton at home, Gloucs away and Brizzle at home on the final day. On balance I'd probably rather Newcastle's fixtures. Brizzle aren't out of it either. With them going to KP on the final day that could be an asbolute belter.
Personally I'd like Newcastle to stay up most out of those 3.