I feel like I should go with the M1A and anything else I'll be compromising and justifying it by saying, I get 2 for the price of one!
If you're going for a do-all weapon, I think the M1A is money well spent. The only other option I think I would consider would be a .308 AR pattern rifle, but frankly, the M1A feels way better in my hands, and is more fun to shoot IMO. Especially if you like irons.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed." -Amendment II, Constitution of the United States of America