I'm gonna go against the grain here....and don't get me wrong, I love the 870 (I have 2)....but IMO the best deal going on a pump is one you don't have listed: The Mossberg 535.
The 535 has the stuff I like in the 835: 3 1/2" capability, tang safety
And none of the stuff I HATE in the 835: Ported barrel, backbored barrel (I like to carry a couple slugs....BB'd barrel + slugs is a no-no )
On top of that, they are a great bargain. A full camo model with two barrels will run 400-500 bucks brand new and cover every possible shotgunning situation from turkeys to deer to waterfowl to upland to clays. I have 3 seasons on mine...HARD seasons. Never a problem.
Something to consider.
Ryan