The 500, 870, and Nova are 3 of the most highly praised pump guns around. Comparing these guns won't get you far; this is a great example of a good time to pick a gun by how it feels. I hunt with more guys that use Novas than anything else, but because I don't care for how they feel, it is the last of the 3 I would choose. Maybe it will be first on your list. Your next decision is whether or not to get a 3.5" gun over a 3". I find myself using 3.5" shells for geese frequently, and if I shotgunned turkeys, I'd gladly be taking advantage of the extra pellet count there as well. It's a nice option to have, but not necessary. I use my 3" gun for everything else, and it's not much of a handicap when I use it on geese.