My go-to rifle since '92 has been a .280 A-Bolt. Some features I like lots: That loading system is a love-it-or-hate-it affair, I love it. the trigger is spongy. I heard the A-Bolt II trigger is better; haven't tried it. It doesn't sound important, but that 60 degree bolt lift, combined with the shape of the handle, gives you a whole lot of clearance from the scope, making it glove-friendly and VERY fast to cycle. I don't know if the barrels on the old models were thicker, but mine shoots 5-shot groups well, and is not prone to heating quickly.
What I would like to see is a better trigger, and a stock with a rounder forend and wraparound checkering a la Remington. And a better recoil pad.
You can't go wrong with the .280 Rem. like the '06, the .308, the 7X57, and the .270, it's a great all-rounder. Somewhat underloaded at the factory due to its original introduction in the rem 740, it comes into its own when handloaded. I've tried 115 grain, 139, 140, and 154's in mine. All shot accurately, certainly better than I can use. It's a consistent sub-MOA shooter, and will handle anything I care to hunt.