As a "stat-head," I enjoy Baseball Prospectus and have a subscription to their premium stuff online. They posted an article today with some stats that quantify baserunning. The Angels ranked first last year, adding an estimated 13.64 runs with their baserunning. (This was the highest single-season total by a team since BP started keeping track in 2000.) Interestingly, only three teams helped themselves on the basepaths (the Mets and Phillies being the other two). This is mostly because stealing bases is a high-risk, low-reward proposition and most teams aren't very good at it.
The Angels were led by Chone Figgins who added almost five runs with his legs. Izturis and Cabrera also seem to be particularly good baserunners based on BP's stats.
By the way, the stats are based on:
Advancing on hits
Advancing on fly balls
Advancing on groundouts
Stolen bases (and caught stealing)
I know there is a bias against stats such as this around here, but I thought it might at least open up some discussion as to what our anecdotal observations tell us about the Angels' baserunning.