I ride a size 13 Burton Ambush. Started with a 162W Burton Deuce. Really liked it but mid-level board. After a few seasons upgraded to a Lib-Tech T.Rice Pro 157. At 6'4" 195lbs, my personal preference was to a shorter board, I felt like the 162 was just too long and cumbersome. The T.Rice's are a MW board so there is some extra space. I ride +12/-9 with no issues. Don't do any hard euro carving but have never experienced any toe drag.
This year I won a 157 Jamie Lynn Phoenix in a contest, which is not a MW but regular width. Took it out one day, still +12/-9, and didn't ride it super aggressive as I was with my girlfriend who is just learning. Didn't experience any bad drag or anything but again I wasn't carving very hard. I plan to take it out a few more times and out west in March so we'll see how it stacks up then.
I was talking to another big footed rider and he had the same experience as me, started with a W, went to MW, and now rides regular. Though he may only be an 11.5 or 12.
So after that rambling, I think you'l be fine on a Wide, which is the safest bet anyway. However if you're at the mountain and they're doing demos, demo a MW or regular if you can. Stance angles and width can affect overhang also as previously mentioned. Obviously the higher your angles the more space you have to work with on your board and less overhang. But as also stated once you find your comfortable stance you don't really want to change it around just to fit the board.
That's my 2 cents anyway.