RE: Most accurate, Worst, Favorite out of the box Muzzleloader.
Most accurate: 50cal Pro Hunter. Right out of the box it was a shooter. Made it even better with some trigger work I did.
Worst accurate: Out of the three MLs I have owned (and still own) I will have to say my Lyman Deer Stalker...but don't get me wrong...it's a good shooter and I love to shoot PRB out of her. Out of the box with the flip up rear sight it shot good but I improved that with a Lyman Peep.
Favorite: The Pro Hunter but I'm really likeing that 45cal Accura with the thumbhole stock.