any thing that can help you when you learn to box like your reach is good for you but you did not mention weight? I have seen 6 ft'ers in the light weight division and that gave them one heck of an advantage in both reach and height, so it depends on weight to

I guess what I'm asking is will me being 5'9 and having a wingspan of 5'11 have any benefit if I decided to train as a boxer

Anyone of any body type of any look can be a great boxer.

You're too flabby...

I understand that just body type alone will not make me a good boxer and that it will take hardworking and dedication. I'm about 5'9 with a 72inch wingspan, I was just curious to if I had the body type, a lot of people ask me if I'm a boxer and when I say no they say "well do you wrestle?" And I still say no lol I play football and basketball and I'm an overall active person but I'm just curious as to what makes them ask this