I'm whatsan00b, and I like Assassin's Creed.
I never really got into the AC franchise until I played Brotherhood just before Christmas. My sudden love for the game drew me into buying the first two games, the 2nd I thoroughly enjoyed, whilst as anybody can guess the 1st was quite frustrating to play. Nonetheless it was still an enthralling game.
So I currently own Assassin's Creed, Assassin's Creed II and Assassin's Creed: Brotherhood (Codex edition - unfortunately Australian's didn't receive the Lineage DVD though). I've also pre-ordered Assassin's Creed: Revelations, and plan on buying the special edition (the most expensive to get the most extras). The thing that led me to pre-order this game so early though, was the fact that I received a free Abstergo t-shirt with it, which I was absolutely thrilled to get.