I learned to fly on the RAF Bulldog in the UAS. They're fantastic. Very responsive, aerobatic, yet stable enough to provide a sensible training/PPL platform. Variable pitch props = better performance and economy, superb visibility from the cockpit, and of course it's stick control! I flew one again last year at Kemble and it immediately struck me how nimble and sporty the Bulldog felt compared to the usual spam can.
So, a fantastic little aeroplane in my book, a nice blend of all the best aspects you could wish for in a light aircraft.