If I could guarantee equal accuracy between the 2 cartridges, I would roll with a .45.
That said, having owned more than a dozen .45 revolvers, and the majority having throats of various sizes, I always went back to the .44.
It is very hard to find a Smith or Ruger .44 mag that is not a tack driver. The same definitely cannot be said for .45 Colts.
I will continue to own both, but normally reach for a .44, as it does everything I need.
Someone was emailing me some questions, and this thread (once you cut through the arguing) has some good information.
I still tend to roll with the .44 for the reasons stated above.
I have yet to shoot a critter where substituting a heavy .44 load for a heavy .45 load (or vice/versa) would have made the slightest bit of difference.
THE CHAIR IS AGAINST THE WALL.
The Tikka T3 in .308 Winchester is the Glock 19 of the rifle world.