I have a Win 94 Trapper in 357, 44mag, and 45LC. If I could only keep one it would hands down be the 44mag. If you're looking for a pistol caliber I like the 44mag over the others. In a rifle cartridge lever gun I like big boomers because they have a certain cool factor so I like the idea of a 45-70 and for short distances they hit like a brick but they also have the BC of a brick so if you think you'll be shooting 100yds or more the 30-30 would probably be a better choice.