For me it is the no longer available DD1611, a light bastard with a simple compound hilt. It is the sweetest handling sword that you could imagine. It even meets that seldom fulfilled definition of a bastard sword - as easy to use with one hand as with two.
For something definitely one-handed, I'll go with the MS2104, a beautiful little sword with a gladius hispaniensis blade and a medieval hilt. It's Fantasy, I know, but I still love it.


DD1611


MS2104 "Short Leaf"