My local PBS station would run entire stories on weekends, so I’ve seldom experienced classic Who drawn out over weeks.
Tom Baker was the only Doctor I knew as a kid, since very few American markets ever got the Jon Pertwee episodes back in the 70’s.
Having seen more of Patrick Troughton’s era, thanks to recovered episodes and animated reconstructions, he’s currently my second favorite these days.

I still marvel at what they could pull off with limited resources and technology in the 1960’s era.