Once we have shot through an animal, we have done all we can do. There are plenty of loads that will shoot through a deer in 44 magnum. But, they'll still have more recoil, blast and operating pressures than the 45 Colt and they'll still have a smaller, lighter bullet.The 44 magnum is a great cartridge. IMHO, the 45 Colt is just better.
I can't think of another thing to add!
(well i can, but you said it very well).