Keep in mind the availability of barrels and accessories you may need down the road, in which case I would recommend a Remington 870 with a 4+1 capacity. More accessories are also marketed for the 870 than any other shotgun. Should you ever go to a pistol grip stock, you will curse the tang safety on a Mossberg 500.
If you choice is limited to the three in your original post, I would go with the Maverick. It is very much like its big cousin, the Mossberg 500, but no tang safety and I believe it takes some of the Mossberg barrels.
All you need for HD is a short barrel and a simple bead sight. I would stay away from ghost rings unless you just want to look cool. If that is what you want, its fun to look cool. I wish I was young enough to be a mall ninja.
Personally, since getting the 870 I have been converted to believing a handgun is a superior HD gun,. The reasons are beyond the scope of this thread, but I keep my 870 as a back up clays gun for guests and when not at the range I pop the short barrel back on and it resumes its duties as a secondary HD gun.