@mortie-10 It's been a while since I've seen Omniverse, but from what I recall, Rook did contribute significantly in a lot of the stuff that went on in the show. He's not a bad character and a lot of the stuff that you say about him is flat out wrong. Like what do you mean by he's completely fine with the retcons and some of the retcons wouldn't be there if he didn't talk about them. The show's retcons are not on Rook. That's on the crew that made Omniverse. Also, secretly evil and working for the Rooters? Seriously? Come on, man. That's freakin ridiculous and makes it seem like you're blindly disliking Omniverse. I don't consider Omniverse to be a good show, but I wouldn't go that far with Rook.
There is one thing that I do agree on the most, and that's Rook replacing Gwen and Kevin. Mainly Gwen though. Ben and Gwen work very well together. They have pretty much the best and most dynamic relationship in Ben 10. They fit each other like a glove so much that Gwen just doesn't seem like the type of character that should be replaced as Ben's partner. Rook doesn't feel like a proper replacement either. He seems better off as a side character than a main character. I don't mind Rook being introduced into the Ben 10 franchise, but he most definitely shouldn't have replaced Gwen and shouldn't have been a main character.