Interesting. Did you play AC2 when it first came out? That has remained my favourite in the series by far all this time. But then again, I've only played 1, 2, Brotherhood, first few hours of 3, and Black Flag.
I did and have played all of them from release. When 2 came out i was blown away at the improvement and still really like it to this day, but brotherhood of the ezio series is my favorite. The only AC i didn't care for was Unity
VIDEO GAME MUSIC MASHUPS