I don't own an Alaskan, I don't like that short of a barrel but I do like the .44 magnum revolvers. My particular .44 is a S&W 629 V-Comp .44 magnum with a 4" barrel without the compensator attached (which tames the recoil so much everyone who's shot it have been amazed). It's a Performance Center gun and, holy cow, is it an awesome shooter! I love Ruger revolvers but they are not near as nice as a S&W PC gun unless modified.
I don't like short barrel magnums because they lose too much energy with full power loads. I've tried shooting "bear loads" out of my 3" GP100 (which I love) but all I got were big flashes, low recoil and unburned powder everywhere. That's with a 3" barrel so I can't see how an even shorter barrel is going to provide the oomph needed for traveling in scary bear country. Obviously the Alaskan manages to put out a lot of energy, I don't know how, I'm no ballistician. However, if it were me out there I'd have my 626 V-Comp because I know she's got plenty of barrel to use up all the powder and gain all the energy available.
I'm not bashing the Alaskan, I love how they look and if it had a 4" barrel I'd buy a couple of them, I've just not had much luck getting short barrel guns to shoot high power ammo.