I must admit to never having seen a Liz story.

Although she spends much of "Inferno" acting like a alternate version of herself, she's absolutely fab. Plus there's just a sweet hug at the end, that puts to shame any Three/Jo shipping. If I had to ship three with someone it would totally be Liz. Her first story is Spearhead From Space (naturally) and she's wonderful in that too. It's just a pity she was only around for one season. *sigh*

I think Three is a bit of a santimonious arse.

He is, he really is. But then I think that can be said for just about all of the Doctors.

I imagine a fair bit of my resistance to Six and Seven has a fairly obvious screechy source

See, I've always loved Peri, and I think Mel was simply mis-used. She had so much potential and it was totally wasted. But then, so did the character of the sixth Doctor, and any number of companions through the years.