The KAS is definitely a solid weapon. I still feel the +2 speed on the Italian outweighs the +1 cut/stab and the +4 reach on the KAS though. The 2k price difference is also nice.
Correct me if I'm wrong but doesn't the Italian have more pierce than the KAS?
Anywho, I vote Italian as well. It's pretty, fast, strong, long, and altogether quite versatile. Though the Long Espada is generally more deadly, I find, the Italian is more reliable.