If its all the same with you, I'll decline from answering this question.
Clark's menial labor would not be the same as a normal person's due to his strength not to mention how often he tests his physical skill against opponents like Mongul, Doomsday and Brainiac. Diana by contrast grew up with people who weren't as strong as her. She'd be more muscular than the average woman but that doesn't mean she'd be more muscular than Clark.And are you seriously comparing menial labor to a woman literally trainning for combat (and specially wrestling like I prefer Diana's specialty to be). Her trainning would be specifically guided to practicing feats of strength in combat useful ways. Superman would only partially and accidentally also get a little pump from working on the farm, and it's not even like most of the stuff he did would be designed to test his limits so that he could build muscle.