I have several JM Marlins and several Winchesters. The Winchester, I believe will handle a longer loaded case. I sold my first Marlin 44 because it would not handle Keith style bullets. But I have one again. I understand that a person can modify the carrier on the Marlin so that it will handle the longer loads.
Otherwise it's a toss up for me, I like them both!

I prefer classic.
Semper Fi
I used to run with the hare. Now I'm envious of the tortoise and I do my own stunts but rarely intentionally