You know full well we have many good memories of the same shows, Gunther. I have all your favourites in my collection. The only incomplete set is Gene Roddenberry's Earth: Final Conflict which contains only the first series which was by far the best.
I probably would put Tom Baker in the number one slot as Dr Who but with such a long running franchise there are a number of moments from other actors playing the time traveller which are special in my remembered experiences. I'm never very good at choosing from lists so some of these polls are a nightmare.
Which brings me to:
Talvieno wrote:Adding Dune and Hitchhiker.
Only five allowed, Nathan? Which one do I axe from my choices?
Edit:
It wasn't Babylon 5 that got the chop as you may have noticed. Didn't anyone else enjoy this space opera? I watched the whole five seasons with someone I loved very much who had never shown the remotest interest in science fiction. "Sleeping in Light" the final episode, still reduces me to tears.