I'm not a fan of H110/WW296. I don't load .44 Magnum, but I do load .45 Colt for a Ruger Blackhawk and .41 Magnum along with .357 Magnum. I use Unique for my lighter loads in the .45 Colt and .357 magnum. Haven't tried any lighter loads in the .41 magnum yet. For my not quite so light loads, I use 2400 in the .357 and .41 mags and I like Lil'Gun for the .45 Colt, but Lil'Gun likes heavier bullets (think 240 grain and up in your .44 mag).
For the .357 and .41 Mag, if a max load of 2400 won't get me where I want to be...well, that's never happened. I've been really happy with 2400. If I couldn't use 2400, I'd probably give Blue Dot a closer look. I've mostly been happy with it, I just like 2400 better.
I also love Unique. I use it for .357 Magnum, .45 Colt, .44 Special, and .45 ACP. Once I get some .41 caliber lead bullets, Unique is the first powder I'll go to there, and once I run out of the old canisters of Bullseye I've been using to load .38 Special, I'll probably go to Unique for those, too.
But you don't like Unique, and that's fine. Different strokes and all that. Like others have said, you might give Red Dot a look.