I have three swords, used for different purposes, and given different names. Because they are all special to me.
A katana called Dark Sentinel. It is light, long, and a suitable weapon for self-defense (and an excellent watermelon cutter!
), but I have to be especially careful when using it. It's the only sword I have that actually has an edge, so I have to treat it as the dangerous weapon that it is and keep it properly stored at all times.
Then there's Jagged Spark. It's plain-looking and kind of heavy and cumbersome, but that makes it suitable to fool around with and abuse. It's the only sword I can use to engage in pseudo-swordfights with (which just consist of both people hitting each other's swords). Its blade is nicked and dirty, but it's the one I have had the most fun with.
And a blued blade called Nightbringer. It looks very cool, it has a nice red-and-black leather hilt for suitable grip, and it's the lightest and most balanced blade in my collection. It's the most comfortable one to swing around with, but I dare not actually use it lest I ruin its good looks.
I also have a machete that could qualify as a rough fourth. It's nothing special, just something from Wal*Mart or something like that, but it was the first blade I ever got, so it holds a special place for me. The short length and dull blade means I can pull a few silly tricks with it, though, so it can be pretty fun to use.