Take the 375. That’s a great setup for moose and bear, especially for float hunts where you may very well come around a bend into a bull.
My float hunt gun is a 375HH, It’s almost exclusively purposed for float hunts, lower power optic, shorter barrel. Nice and handy for tossing in the raft or climbing steep banks for a better view. I think I’ve taken like 7 bulls and 3 bears with that gun.
I hunt a lot with a 30-06 and a 308 but if a float hunt is what’s happening, I grab that 375. 260g Accubonds are an excellent choice for moose with a 375.