To quote someone else on this forum who previously posted this:
"Remington vs Mossberg is like Ford vs GM"
Go in the store, handle both, see which one you personally like better.
Or go out to a place that rents them, rent both, see which one you like shooting better.
I was in your boat not long ago.
Start touching the things in person, you'll form an opinion.
But don't touch them like Anthony Weiner :P