Andy Gray - never thought I'd say this ...

but I think he's improved a lot and has become considerably more thoughtful about the game compared to a few years ago, when he was essentially a newly converted player. These days he seems to have developed his analytical skills, though this may just be compared to some of the "pundits" Sky drags in to the studios on match nights.
More on the Sky pundits in the fullness of time. But beware Jamie Redknapp, I have an acid tongue!