Having loaded/load the 44,41mag and 45lc., I would have to lean towards agreeing with Sevens
Especially the availability of the 44 brass compared to the 41.
I used to shoot often at a local indoor range here in Lancaster, Ohio. I used to be allowed to gather brass and in total, gathered almost three, 5gal. buckets of 44. Bet I didn't gather 100.pcs. of 41 and not much more 45lc.
A true shame cause my fav. pistol round just happens to be the 41. with the 45lc coming in a very close 2nd.