Which one of these loads would be best suited for hogs?

If you must use an AR for hogs then the heaviest bullet is the best choice. The A-max is too long to load up for use in a magazine though. The A-max was designed for long range competition were a shooter has time to load one round at a time. The regular Hornady 75gr bullet and the sierra 77 will be able to be loaded to fit the mag for a LOA of 2.225"  
I have a Marlin GG  in 45-70 and load 405 gr bullets at 1900 for thumping power, thats just me though, if I could I'd use a 105mm!
I don't like to see em run off after good shot placement.

what about nosler partitions?

Quoted: what about nosler partitions?

good choice.  there's also the 75gr swift scricco or 70gr barnes tsx.  I'd just use the 77gr otm(only noslers, sierra's don't expand reliably) because it punches tiny holes and is plenty enough for deer/hogs.