Hinged floorplate.
Not matter who you are or how skilled, the hinged floorplate is safer. I hope that everyone else in my hunting camp has one.
The first stainless Rem M700 had a blind magazine. Had one. I thought, great, one less place for water to get into the gun. Well, if you are not careful, the water can pool in the bottom of the magazine, rather than drain on through! This, of course, is no big deal, just a mostly theoretical argument, as most such arguments are!
Mike