Yeah, McGann was pretty cool. Shame that he was only handed a terribly shitty movie - his 7 minute appearance in The Night of the Doctor is better than that pile of trash.
Also Sylvester McCoy was an awesome doctor with the stories to match. His final two seasons are some of the best writing on the original show, stuff like The Greatest Show in the Galaxy, The Happiness Patrol, The Curse of Fenric or Ghost Light are some of my favourite DW stories, and Ace is a pretty sweet companion.