Season 16 has loads of female characters ... far more than most other seasons of old DW. It's very noticeable.
My favourite would be The Stones of Blood. It drops in quality a bit when the Megara come along, but the rest is excellent: the Ogri, hilarious Prof Rumford, creepy Vivien Fay, the camping sequence is utterly horrible, Elaine Ives-Cameron was always a favourite of mine, lots of stuff about citric acid ... lovely. Androids of Tara is lovely, warm, cosy and summery, and has Cyril Shaps in it.
The Armageddon Factor is crap. A classic example of a six part story being two episodes too long. It's boring, padded, waffly and uninvolving. Bad, bad, bad. Hate it. At least Power of Kroll has a slimy monster (Kroll gives me the heebiejeebies), an unusual location, and that hilarious cliffhanger where Romana is menaced by a claw. ("I suppose it looked more convincing from the front"). Armageddon has none of that. It's poo.