I have 2 BARs I like, 243 & 308, then a few ARs. They are not going anywhere. That out of the way, I more often take a simple bolt out for hunting. This is due to the fact it's usually a one or 2 shot ordeal, and in general, bolts can be easier to deal with in inclimate weather.
It's also easier to do a strip down for cleaning after being out in the wet. A bolt is more forgiving with reloaded ammo too, sizing issues. I like my bolt triggers better too.
I know I should just get my semi-autos out more.