I think the Marlin 336 in 30-30 would work just fine. I think it would be at its best with good, large meplat cast bullets, but a good 170gr round or flat nose would probably work very well, also.
I've only killed two 150-ish hogs with my SKS, and I believe the "standard" 123gr bullet is too light. I haven't had a chance to try the 154gr soft points, but I think they might work a little better.
If I was going to choose a hog gun, and price was no object, I might have to go with an M14 type, like the Socom. The ones I've handled seem to be fairly light, and quick handling, and the .308 would be all the punch you would need for just about any hog that ever rooted... With the picatinny rail system on it, you could have any type of sight plus laser, and flashlight mounted, ready for use.