Freak. that said, you're in many episodes: You really should watch the episode where Homer falls into the third dimension Red. or even the one where Lisa develops an anti-bully repellent for her fellow nerds.
Most characters killed off in the simpsons have been done so due to the voice artist leaving or being cut. (Characters of multiple artists will not likely be cut.) With this in mind, I find it likely that Sideshow Bob will be the one cut as I dont believe kelsey grammer does any other voices. There is only so many times you can try and Kill Bart and aside from that he adds little to the overall.
Funny thing is... as a kid I thought "the simpsons" was about Bart. As an adult its about Homer. Its talented how the show speaks to each generation and makes that generation think its about the character close to their age. Do girls think the show is about Lisa? I reiterate though... kill Maggie... she shoots people and is annoying. She's worse than Meg from f guy.
I agree with all of that bar the last sentence, Maggie isnt annoying. And to fall in line with rest of your comments I like her even more now with a 7 month old daughter. She makes Maggie's dummy noise sometimes, arrrrrrrrrrr And Meg is needed because of some of the things Peter says to her