User blog comment:JoshTheKing3/Total Drama Eliminations That Don't Make Sense/@comment-24952355-20180330073344

Heather probably wanted to go after Justin because he was kind of a threat. He did good in the challenges (or at least in the talent contest he did) and everyone liked him because of his looks. Even Heather was affected by Justin's charm, so she maybe thought he needs to go so he won't distract her from her game? These are just headcanons though. Cody could have voted for Justin or Trent due to jealousy. Who knows.

Tyler's elimination made sense to me. Duncan and Bridgette were friends with Courtney at the time, so they wouldn't vote her off. Duncan most likely convinced his pals (Geoff and DJ) to vote for Tyler as well. Duncan, Bridgette and Geoff all made fun of Tyler when he left, so that confirms they voted for him. That's 5 votes Tyler, 3 votes Courtney.

Well, they wanted to win the upcoming challenges, and keeping Cody would have been a bad decision as he would have just dragged the team down due to his injury.

This will probably never be explained. It will always be a mystery who was the person that voted for Bridgette (other than Duncan, Owen and DJ of course).

Yeah the other eliminations that you listed didn't make sense at all, especially Izzy's. Can't defend them at all.