I happen to have both an 870 and an Ithaca DeerSlayer. Both are rock solid dependable and good shooters so it’s really going to come down, in my opinion, which one shoulders or carries better. My Ithaca feels a little heavy to me but the thing is built like a tank so…… guess that explains that! Personally, I like the bottom eject and the beefier construction but I have no idea how the DeerSlayer II stacks up against it’s predecessor. Finding an 870 should be easier, cheaper, and provide a bunch of accessory options. Honestly, you can’t go wrong with either one but I know if I ever parted ways with my Ithaca, I’d miss it more than if I parted with my 870. Most likely that’s just a “me” issue. However, it’s the truth!