Burke vs Hardwicke!
I re-watched the whole series recently! The first episode that I watched when I first discovered the series (I'm Greek) in 2006, was "Silver Blaze". As you can understand, I watched the whole "Return" set and then the "Casebook" and "Memoirs" set. So Hardwicke was the only Watson for me. Back in the day, I didn't know that David Burke was replaced!
So when I watched the first episode from the "Adventures", I was fascinated by Burke's performance! I think that the chemistry between Brett and Burke was amazing! I loved the younger version of Watson! Having read all the books, it is clearly mentioned that Holmes is in his mid-30s and Watson a little older. I know that both actors where much older but, I loved the looks of them! And of course, Burke's acting was superb! Don't get me wrong, Hardwicke is great but if I had to choose only one, I'd go with Burke!
What about you? Who did you enjoy most as Watson?
(Answers like "I love both, I cannot pick one" don't count :p )