I can't really claim to have a solid opinion on this one sadly because I have only played on the first XBox, and it wasn't even mine. I'm trying to remember when precisely and what I played. Also while one of my favorite games is up there, plus a couple others I liked a lot, I never actually played them on XBox but rather PC instead.
I think I'll pick 2005 though because of the combination of a fairly solid actual release schedule (even if I was mostly unaware of it at the time) combined with the fact that this year was probably the culmination of my personal familiarity with and playtime on the system.







