We discussed Springfield Elementary school already, but not boys and girls, who are studying there, but there are many interesting different characters. Whom do you like and whom - not so?
I myself like very different persons: Ralph Wiggum and Nelson Muntz, they have good and bad sides, but many times with Lisa they showed good ones, and it's so interesting to see how they can change.
We had discussions about Ralph's condition on ISFF - is he mentally ill or simply dumb and bad-raised by his dumb dad (I choose first version), but anyway he is so lovely and sincere. He almost haven't relations with his mother and he hasn't friends, so I feel sorry for him a little. Unfortunately, his abilities was described only twice in cartoon ("I Love Lisa" and "This Little Wiggy" episodes). And only one time, when I hate Lisa's behaviour - is one, where she hitted Ralph, when she was Jake Boyman, because he is simply so harmless
Nelson too, has family problems, and he is always hiding his good sides under his "coolness", but he helped Lisa several times and there is something real good in his character, although sometimes he is so meany.