I was going to vote for Other (Xenoblade) but the Best third party game is:
Monster Hunter Tri - It's one of the best and most addicting RPG's ever with tons of customizations, quests and online co-op to keep you going. It's fun and never gets old, my only problem is it's weak story. (great ending tho!) This is definitely a must own.
Other Great third party games:
GoldenEye 007
Pandora's Tower
Project Zero 2
Red Steel 2
Silent Hill Shattered Memories
Sin and Punishment
Tatsunoko vs Capcom
The Last Story
Trauma Center
Xenoblade Chronicles.







