Okay, I'll bite on this one too.
1 Herry Monster (I miss his blue fuzzy self)
2 Kermit the Frog (I miss his reports)
3 Little Bird (whatever happened to him?)
4 Bruno (word is he was never rebuilt)
5 The Yip Yips (I know, a simple gag, but it's funny)
(along with the cast of Sesame Street before it became the Elmo Show)
Elmo is my choice for a character that could hang in the background for a while so the other fuzzy fellas can have a turn. S is for Sesame and it's also for Sharing!