RE: If I could do it over again.
nice choices to par it down to three guns (rifles).
here's my three:
22lr plinking, small game (rabbits, squirels, gophers)
243 Deer, varmits
300 Win mag Black bear, elk, etc.
(could do a 338, but I don't like the recoil and I'm not going to Alaska, but I wish I could)