it's a fine line, body builder may not be athletes by any reasonable definition if the word athlete, they will undoutably be fairly strong, but turning that in to athletic movement is another matter, id much sooner go up against a body builder, than a power athlete who lifts who lifts weightsIsnt that a effort for anyone in grappling? if someone who is heavier and/or stronger than you and taller than you gets into grappling range? At least if you do striking if you clock them with enough force on the jaw you can induce a concussion on them, so long as you can generate enough force to get said effect and hit their jaw.
I just know i think thats something some pretty decent grapples struggle with, especially if they just know enough to sufficiently defend themselves in it. Of course its not a perfect world and fighting is a struggle anyway and you can loose even if you have the upper hand and all that.
More directed at your BJJ giving the best chance to a small woman post. Obviously a trained fit female could probably whoop a unfit and untrained male. Actually i think they would, but always a chance to loose if you fight anyone its the nature of it.
Actually someone answer this question for me, is body building the most common strength athletes? I swear that type of exercising has become a hobby for a lot of people. Just more probability wise of what you would end up fighting on averages, or dealing with. Preparing for your average clientele you will deal with is probably the only thing you can do.
Anyway kind of rambly i hope i made some decent points in that.