The thing that sold me on Remington 870's is the dual action arms. Mossbergs have only one action arm, which have been known to bend slightly over years of use and cause problems. Durability is very important to me when choosing firearms, and Remington seems to go that extra bit to ensure reliable use for many years.
The 870 Home Defense model I bought came with an 18.5" bbl and a 2 round mag extension that puts the end of the mag tube right under the muzzle. I replaced the stock with an ATI top folder, and put a black heat shield on her, it looks mean as heck. The capacity is 6+1, but for close quarters I would rather be able to maneuver around corners better with a shorter bbl, than have an extra shot or two, and the folding stock increases the maneuverability even more when it's up. Then at the press of a button, I can fire from the shoulder.
[SIGPIC][/SIGPIC]In order to rally people, governments need enemies. They want us to be afraid, to hate, so we will rally behind them. And if they don't have a real enemy, they'll invent one in order to mobilize us.