Which type of fencing is the most similar to a duel?
all of them
As the entire body is legal target, épée looks like a duel the most. In foil and sabre there are a number of stipulated rules and the target is limited.
reach: rather globalfencingmelee weaponssportweapons
+2 Very interesting! globalquiz.org
Acceptable El rey del barrio
+1 Very interesting! misanthrope