My 2 cents: I want a happy ending for Dexter. I hope he, Hannah, and Harrison make it to Argentina and live happily ever after. I hope that Deb gets good medical attention, makes a complete recovery, and hooks up with Quinn (who cleans up his act).
Dexter was a good bad guy. We cheered when he stalked and did away with the real baddies. He worked hard at it and he got rid of a lot of creeps who deserved it. We don't want to see him lose everything at the very end. Okay, maybe Hannah gets nabbed at the airport. She was evil.
I hope he gets away with it all. I don't want the law to catch up with him.