For me it's fellblade, but you all know how it looks. I sort of like the Katana that came with factions, but it just looks wrong when its hold with 1 hand. 2 Handed swords FTW
Other favorites are Flamberge, Gothic Sword, and Platinum Blade.
Anyone who likes the Crystalline is a misguided glamor-* why the hell is a 5 letter word for prostitute censored but normal cuss words aren't? It doesn't even look like a sword, it looks like a candy axe on a flimsy ginger-bread handle.