new 900 4 vs old 900 xp4???

so im on the market for a 4 seater. I do not want the XP1K4 because it is too big for the riding i like to do. i am looking at buying a new or barely used 2015 900 4 and or a 2012- 2014 900 XP4. I know there are advantages and disadvantages both ways.
1. 88hp vs 75hp
2. voltage regulator issues
3. the XP4 im looking at is a 2012 with 110 miles on it. if i remember correctly 2012 had the old 60watt stator and wet sump motor.. both a plus to me.

i like the appearance of the 2015 and wanted some feedback from those with experience one which one seems better?? Price is not an issue.