i was just thinking how hard i find it to choose between these two and wondered what everyone else thought...

Omg this was SOOOOOO hard but I had to go with Mrs. Landingham! The cookie jokes alone were hysterical!

Mrs. Landingham was just such a more important character, even if she was in much less of the series. Debbie was fine... I guess, but I wouldn't say I loved her.

I didnt find it that hard! I like Debbie but no way as good as Mrs Landingham I was gutted when they killed her off!!

Id say I enjoyed Debbies character more. She was more entertaining and had a better rapport with senior staff. Delores had the edge over Debbie (in terms of rapport) with Jed only. However, Mrs Landingham always feels like the original and best. So thats a tough one.