I think Colo had a longer, more consistent period at his best that was close to or as good as Woodgate's spell for us, so would personally pick the Colo that saw us to 5th in the league... just.
I don't think that best was Woodgate best though.
That's fair enough. As I said before I won't tell anyone their opinion is wrong for picking either way. They are both by far and away the best two centre backs I've seen play for us. Colo fully deserved his place in team of the season the year we finished 5th and Woodgate certainly earned his move to Madrid.