Okay, I own a few .357 lever guns and can chime in this thread.
The nicest and smoothest are the Winchesters and Uberti's. The Smith and Wesson 1854 is nice and functional but not the smoothest in terms of function.
The Marlin 1894 was a POS from day one. Purchased it new from Canadian Tire and would have a hard stoppage / jam every 3-5 rounds where the cartridge was being jammed under the lifter and magtube. Only way to remove it was to pry it out or loosen the receiver screws to allow it to slip out. 6 Months later and Gravel agency sent me an entirely new replacement rifle. And lo and behold that one jammed as well with various .357 and .38 rounds. So that one got sent back as well.... in the meantime I had given up on the Ruger Marlin and bought the Winchester 1892 takedown and later the Smith and Wesson 1854. Got the same Ruger Marlin rifle returned to me this time with a "clean bill of health" and it still jammed. I ended up replacing the loading gate and mag tube follower with ranger point precision and it's been reliable about 200 rounds in to this point.
Anyways I feel the Uberti's are better bang for the buck, the Winchester have nicer finishes (but are more expensive), the Smith and Wesson 1854 has been nothing but reliable and worked, and the Marlin... well I save that for the rainy / bad weather days at the range and bring a screwdriver should it jam up again. Many Ruger marlins are out there with their owners reporting no problems whatsoever, so I'm chalking this up to getting a lemon.... twice in a row....
Top to bottom First photo (All .357 mag):
Winchester 1873 deluxe with half octagonal barrel
Winchester 1892 Deluxe trapper
Marlin 1894 SBL
Smith and Wesson 1854 Stealth hunter (With ranger point precision stock and quiver, Aimpoint comp M5, and Malkoff MDC HTL 30,000 candela light head on an arisaka 18650 body with a unity tactical button)
Second photo:
Uberti 1873
Uberti 1873 Special with nicer pistol grip stock and checkering
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