Lol heck yes- and Lady Sif does actually have powers. It is shown in various scenes her performing feats of great strength compared to any human. She has enhanced strength, speed (I'm sure), durability, fight skills, and so forth.
As much as i hate to admit it wonder woman would win she had more power than lady sif the both cant outwill each other since they have same mentally and values so it relise on power and wonder woman has more abilitys than lady sif if u read the comics she has more abilitys than flight
I agree. But since they are both heroes with good morals, I don't see any reason why they would fight one another. I think it would lead to a lot of destruction and the loss of innocent lives, depending on where the fight occurs. And knowing Sif and Diana, they definitely wouldn't want that.