Knowing what I know now about the 870's if I was to get one it would more than likely be a Wingmaster. However, that being said I would still get the Nova over any of them. The only advantage I see to the 870 Wingmaster is I like the looks.

With the express it jammed a lot, needed work right of the box as it needed the chamber polished. This is a very common problem with expresses. Never heard of it with a wingmaster. It still jammed randomly way too often for me. It also had a pretty crappy finish on the stock and I don't think the finish on the barrel was all that great either. There have been reports of rust but I never experienced that.

That basically sums up why I didn't like the 870 I had and why I'd go with the Nova out of those two. The Browning BPS is another shotgun I'd consider if I wanted a pump. Heck more than likely I'd prick a Mossberg over the 870 although it wouldn't be anywhere near the top of my choices either.