A pice of sharp steel is a piece of sharp steel. Getting hit solidly with any sword is a one hit, one kill scenario. As long as it's well made and functional, a sword is a sword. It comes down to personal preference, and what kind of combat you're likely to find yourself in, and the skill of the user. And let's not forget Audacity. Fiore dei Liberi said it was the most important virtue of the swordsman. Sigmund Ringeck said that "a despondent heart will always be defeated regardless of all skill". In the historical manuals I'm familiar with, written by "real" swordsmen, very few of them mention what "kind" of sword you should use. Some mention how long it should be relative to your height, but not "you shall use only a sword of the following design", because it's really not relavent to actually winning a real combat. Get a decent sword that you like, and learn how to use it well, and that includes learning how to wrestle while armed. There is nothing else.
Best regards,
-Mark