The 160 gr. would get my vote for the following reasons:
A. You don't know what size hog you might encounter, could be 120 lbs, but might be 250 +
B. The heavier bullet (if well constructed) will likely penetrate better, this is important since it affords you options in shooting angles. We'd all like to have the classic broadside standing shot, but hogs are rarely standing still for long. I would hate to have to pass up a shot just because a hog was facing me or quartering hard away.
Note: The Nosler "partition" is an excellent bullet...but if I were going to use a 100-130 gr. bullet on hogs (at .264 velocities), I would choose a good mono-metal (all copper) bullet like the Barnes TSX.
Good luck on your hunt, be safe.
Flint.