All are great. If you reload and only can get one rifle I would go for the 45-70.
The reason is you can download the 45-70 to 44 mag but you can not upload the 44 mag to 45-70. The 45-70 downloaded to 10 Grs. of Unique and a 300Gr. LRNFP is very accurate to100+ yards and a blast to shoot.
Has anyone reloaded .45-70 with a Lee hand press? If someone is not yet into reloading, that's a good option to keep things cheap and most of all compact. When I started with one caliber I had EVERYTHING for reloading (except the manual) in one cardboard box the size of a smallish boot box: press, dies, 100 cases, Lee Ram Prime tool, cheap scale, pound of powder, powder dippers, bottle of case lube, brick of primers, powder funnel, two boxes of bullets, kinetic puller. It was really handy. The process is slow, but for magnum revolvers it's OK. Very demoralizing for auto-pistol cartridges, though!
I've used the hand press for .44 Magnum and it's OK, although brass from really max loads are best resized with case lube even if you use carbide dies. Not only is it hard to do "dry," but the force required to pull the case out of the die can damage the rim. Luckily they didn't rip off completely and leave me with a stuck case, but I have some .44 brass that's hard to use because of the deformation.
Just wondering if the hand press is practical for resizing .45-70.