10.Jesse
This list had to include him, being as he was the first important death of the show. He was Willow & Xander's best friend before Buffy, and it really stinks that we never got to know him better. This set in motion the tone of the show and the fact that characters we knew something about would die...a lot.
Why so low? I never liked Jesse much

9.Princibal Flutie
The first character death of a minor character in more then one episode! And he was devoured by hyena's, which is pretty gruesome. Plus, when he left- Snyder came! (I love Snyder...well, love/hate...like how people view Snape!)...