The problem with the espadas is that everyone you fight knows that you need to thrust to do any serious damage, so they are always on red alert to block thrusts (kind of like fighting a spear user).
The more balanced swords like the Italian and Knightly Arming are about equal slashing or thrusting, so you keep your opponents guessing. I used a +3 KAS for a generation or so, and it is one of the few 1h weapons that I could beat superior players with in 1v1 situations, because it's so versatile. Now I use a +3 mil hammer, which is better for killing unaware/less skilled people, but crappy as heck for 1v1 situations against skilled players.
On the other hand, no one ever expects a thrust from a Warhammer, Arabian Cavalry Sword, and the other weapons with terrible thrust dmg, so you can really surprise people. Although, "Surprise, I just glanced a thrust against you!" isn't much of a tactical advantage.