It's the same as a Chev vs Ford argument. Whatever one fits you and your budget will be the best. If you find either on sale, go for it.
Personally i like the Mossberg tang safety better than the Rem trigger safety, but that's a minor thing that you can get used to either way. I assume Rem has the same, but you can get the Mossberg combo's with 2 or 3 barrels for not much more than the gun itself with 1 barrel, which increases the use of the gun without getting a second gun.