I don't have any opinions on which factory to get a revolver from, but gotta love that cartridge. It's the only big bore "super duper mag" that's cheap and easy to shoot, lots of reloading components. The 454 has more horse power at the muzzle but at 100 yards they are as nearly equal as doesn't matter.
I do have an opinion on brass. I have some PMC brass that isn't worth a plugged nickle. Wrong temper, difficult extraction no matter how light the load. (Bought it some years ago, they may have corrected it since.) I have no problems with Starline brass.
(The 357 Super Mag is cheap and easy to shoot, but it's not quite a big bore.)