Bleach - I'm gonna disagree. Rukia became a useless side character after the Soul Society arc. While Orihime was prominent enough so she wasn't another Hinata, Ichigo had WAY better chemistry with Rukia while Rukia had NONE with Renji.
Harry Potter - Both Hermione/Ron and Harry/Ginny came out of nowhere because Rowling got lazy. She even admit it she originally planned Harry/Hermione which makes sense because throughout the story, it build the 2 up. They were supposed to realize their feelings for each other when they are alone after Ron abandons them in the 7th book.
Macross Frontier - Eh, I always thought both girls were the female lead. One just as prominent as the other.
Masamune-kun no revenge - That ending pissed me off so much because it came out of nowhere. Yeah, he had become close to the maid girl because she was helping him, but he was falling for Aki the entire time while trying to get "revenge" on her.
Sorry, on these I disagree:
- Bleach - Rukia, I admit, was more interesting (funny, cute, badass) than Orihime. I liked her (more than Orihime, actually)!
BUT, in the story's flow, the two girl are equals. I have not problems with any of them.
And Renji loved Rukia VVVVVERY more than Ichigo loved her. Moreover, Ichigo, more than chemistry, never showed feeling of true love for someone.
I loved Rukia. For her I'll take a man what only think about her and her wellness, and that is Renji. That's the way I see it. 
- Harry Potter - I keep reading statements like: "Hermione/Ron and Harry/Ginny (but I can admit that Ginny's and Ron character evolved in a horrible way - blame the Harry Hero Curse here) came out of nowhere", "Rowling even admit it she originally planned Harry/Hermione" etc. etc...
Sorry, it's not. 
Rowling says a lot of things. 
For instance, I assure you, she said (I read her interview at the time of the saga's end) that the Harry/Hermione shipper's views were 'delusional'! 
I remember very well, I don't lie. Rowling is not better than Kishimoto. 
She is losing popularity, her new books don't sell very well and she needs money so she'll say: Silente is gay, Hermione is black, H/H was a thing, the 'Cursed Child' is canon and more and more for increasing sales. Please, don't take her words for good. 
On Macross Frontier and Masamune I fully agree with you! For the second one, only the 'Omega' Aki's haters are pleased with it!! 
Edited by Niky, 26 May 2018 - 01:27 PM.