I've got two oddballs; Marlin .308MX built around the LeveRevolution round. Great all around shooter. The second is an AR15 in 6.5 Grendel. I love carrying the AR, it's light, adjustable, and it's semi auto. I bought the Grendel upper after reading up on a good deer round for the AR15. This is my first AR, and if the caliber holds up to the hype, this will probably be my go-to. I've killed 2 with it; so far so good.
Of course there is a downside to both...don't run short on ammo, can't pick it up just anywhere.