*...Barend, I'm also looking at you.
yeah, well fair enough... i was wondering why you hadn't joined this one...
apparently the Tom Baker stuff is the most popular in the USA. and i don't want to rob the others of their rightful popularity but my recomendation is anything with tom baker in it. i did the longest stint and was most loveable... being funny, witty, elusive, and angry all at the same time...
i cannot stress enough...
City of Death is an episode (well story=4 episodes) that is newly available that i don't remember too well but can recomend on the basis that Douglas adams wrote it, and john cleese appears in it.
Genisis of the Darleks, Ark in space, are great but they are part of a bigger story... i don't how long it's going to take to bring them all out but the tom baker years was writen quite ambitiously and there are many stories that actually are part of a bigger story.
but you should be fine, i guess... i mean you can always make an effort to watch them again in order to put things in perspective...
although they just put out a 'The Key to Time' Box set which is a series of 6 stories that link together...
the thing about dr.who is that otherwise, all stories start with him appearing and end with him dissappearing so that you could watch them in any order...
personal favs though;
-the talons of weng chiang
-robots of death (largley based on 'I robot')
-seeds of doom (i don't its out on DVD yet, but its just awsome... baker does some intense stuff)
-Genisis of the Darleks (there's a speach in that one that changed my life)
-Revenge of the cybermen (also has a great speach)
-the deadly assasin
-warriors gate (which is part of a trilogy)
to name but a few of tom bakers stuff...
i can't think of any Jon Pertwee epsiodes to list as its been a while... but i was rather fond of him so i recomend checking him out.
with Peter Davison i have a similar problem... in fact it gets hard to name the episode outside my fav... but 'Earthshock' and 'the 5 doctors' are standout episodes...
the 5 doctors being of particular recomendation as it features the first 5 doctors working together (although tom baker was unavailable and so they used bits of an unaired episode to have him contributing to the plot)
well that should get you started...
here's an excellent episode guide with heaps and heaps of info... read through it all and you'll know more than I, that's for sure...
(except i've watched them all)
but the plot option does have a complete ending description so i'm giving you a spoiler alert...
BBC Doctor Who classic episodes