The big finish stories gave me much more appreciation for 5 / 6 / 7, they all have such great adventures and once they find their groove are very well produced. I only add that last bit after listening to the very first handful of stories, they needed a bit of time to get things great.
Of course 8 we hardly saw, and the movie was meh but I think I enjoy his stories almost the most. I'm a bit of a 7 fan for the audio, maybe cause I always thought Ace was a fun companion but the rolling Rs are fun to listen to heh. Though I haven't listened to much passed their 100 so need to get more.
Apologies to not naming the actors I am terrible at remembering spelling and didn't want to embarrass myself with the time constraints.
Huh I thought the one story they did was the origin story, since it has the appearance of the first Cybermen (well they had a few around already) and Mondas had some people still. I forget the name but I think it's #5 and Nyssa, this sounds like it may be a bit before that but also sounds like the doctor may trip over himself if it's not much earlier.
I'll admit, I found first three doctors more rough to watch and only watched a handful of 1-3, more 3 than 1 and 2 for sure. Does make me curious on those episodes though, I do enjoy seeing first and early appearances of major characters/species in series when they're still being fleshed out.