Well, if you don't think it'll be confusing, then by all means feel free to bounce around. I got into Who fandom at its height back in the 80's, and was lucky enough to watch the third ~ seventh pretty much uninterrupted. One and two I watched in bits and pieces.
So heres my list. And well, I just couldn't resist putting them in order.
The rest are worth watching too of course, but they can wait a bit.
The Aztecs
The Tomb of the Cybermen
The Three Doctors
The Green Death
Pyramids of Mars
Horror of Fang Rock
Robots of Death
City of Death
Earthshock
The Curse of Fenric
So heres my list. And well, I just couldn't resist putting them in order.

The Aztecs
The Tomb of the Cybermen
The Three Doctors
The Green Death
Pyramids of Mars
Horror of Fang Rock
Robots of Death
City of Death
Earthshock
The Curse of Fenric