I've never used H110, although have used plenty of 296 which(as has been beaten to death here and elsewhere) the exact same powder with a different label on the bottle.
In any case, I rarely shoot full power 44 Magnums. I don't hunt, so my only real use for any high powered gun is to get more of a "reaction" out of a reactive target. My only 44 is a 629 Mountain Gun, which is not the most pleasant to shoot with full powered loads, either.
So, for my purposes, 2400 is a better powder in 44 Magnum. Unique is an even better powder
for me in 44 Mag.
I have loaded 296 in 44 mag, but most of them I end up handing to someone else and saying "try this."