Agree with the comments..the Rigby certainly has the cool factor... from a more practical note, feel the nod goes to the Rem...

One item no one has mentioned but I did find on several of my hunts to Zim..the 416 Rem. is used by a fair amount of PH's.. most camps I was at, one or more of the PH's had .416 REM ammo laying around somewhere. If you ran low or your ammo just didn't show up as it was being held hostage either in the airport in Paris or on some morons desk in customs...

IMHO, they both have a place..and, in my experience, they are way more effective on buffalo than the 375H&H...very noticeable difference on the effect of the game hit with it .. was actually shocked in the difference.. they both will kill..BUT, I like the initial "shock and awe" factor the buffalo seem to feel when hit by the .416...