The next to die....
We've seen it several time before:
Hal Jordan, Superman, Barry Allen, Captain America, Colossus, Batman.... etc.
A beloved (or not) character "dies" and is later brought back, either better than before or having a lot of new hang-ups for plot devices.
Who in comics RIGHT NOW, needs to DIE in order to salvage the character?
Seriously, who is so predictable, boring, and in need of a "RESET" so much that the only way of making them any more interesting is to kill them?
Use your hatred, use your boredom, be vicious.
If you want, tell the way in which the character dies (be creative).
(and yes, other than deities and spirits, your favorite CAN die)