Owned both 1 and 2 in estate versions, still running the mk2 now.
I liked the way the bonnet wrapped around the edge of the wings on the mk1, also the back end was more "box shaped" so would fit much more in.
Nothing at all wrong with the mk2 and I like the way the interior styling has little touches you can tell are an improvement on mk1 designs.
I'd be happy driving either!