I just bought another Winchester 1300, my third one.
Actually, the synthetic stocked one is a Winnie 1200, but it's basically the same gun with a 2&3/4 chamber.
For most people I believe the placement of the controls on the Mossberg is superior. The slide release button on the Winchester is a bit small. The shooter must take his finger off the trigger to engage/disengage the safety. The early 1300s have metal trigger guards/trigger groups, the later ones have plastic.
For me, the Winchester is the best handling and best feeling shotgun. Mine are fantastic performers and I ride them hard. I bought the lower two for under $100 each at pawn shops, the upper one for $160 at a pawnshop. It came with the 7 round magazine, sidesaddle and heatshield. I could not pass that up.