mjbgalt,
I'm seeking advice on the bolt/optics forum like you are here. Being a shotgunner for more years than I want to admit to, here's my advice.
I've had a 1100 for almost 33 years now and it has had to see the gunsmith twice and the second time was because he didn't fix it right the first time. The 1100 is an awesome choice for reliability and excellent gun handling and it has a lot of options as well.
That said, and no disrespect to varmit_master (i'd be just as pissed), the Bennelli is known for reliability and performance and if I were buying a 12 Ga. today, it would be at the top of my list. I hunt Pheasant with a couple of buddies every year in SD and their Bennelli's have never let them down. And I'm happy to say they take far more shots than I do!
I'm saving for a Citori Grade VII but if you're going for a autoloader, get a 1100 or the Benelli even if you have to stretch that $500 a little farther.
Have fun and let us know what you end up with.