Out on DF they had a poll of most evil MiL / mother / character, of course some of the all time winners:
1. BoF , JP mother
2. SGarden, JW mother
3. K2 heart, John Meyer
Would like to add a few new editions:
4. 100yr - Screaming-abusive MiL
5. Salaryman-MoGab, secretary from hell
6. I summGold-Evil stepmom-mistress#3 -Dukee
7. Town DtrJumbo- Tanyree, this man is crazy!
Who can you add? Come on, I'm sure we got more. Criteria: just bent on destruction of any-all human life to get their way, for the so-called sake of corp, kids, family, spouse, yadda, yadda, yadda!