I have many swords in ddo that i like.
Terror - I love it as a base, it looks downright awesome and it phantasmal killers on a vorpal hit (not to include it is made of crystal, so no mr. Ooze / Rust monster you cannot eat my sword. )
Insanity - Again, it is Freaking Huge, and i am a fan of oversized greatswords (hence my Final Fantasy Addiction)
Oathkeeper - Awesome looking sword, and probally the best stack of abilities on a weapon ive ever seen.
+5 Supreme Tyrant Greensteel Greatsword of Positive Energy - It rocks, and well mainly because i worked so hard making it, it was my first Gs item ever.
Timeblade - It can be used at lv 4, so lewbie toons i make can pick it up and go, it looks awesome and featherfalling... enough said
Fang of Siberys - It looks cool, it is holy and it causes giant bursts of sonic energy
Turbulet Epee - Probally one of the handiest swords ive ever used
and lastly , Any sword with the "Lacerating" suffix , because it is just so mean
Overall my Favorite Sword is " Terror "