watching the whole things between raku and onodera and then thinking about the inevitable end hurt me so much that i kept being in denial until the very end
EDIT: okay this is probably the final thing I will write about Nisekoi and it's ending
I might have realized something that makes this maybe a little more bearable for me:
So basically you know how this whole manga is titled "false love"
and it's pretty clear that this is referring to chitoge and raku's relationship throughout the manga
however, I've come to realize that there might be a second meaning behind it.
The false love also (and foremost, I think) referred to Raku and Onodera.
Now don't get me wrong, they very obviously liked each other, but I am pretty sure now that the love between them was more on the terms of a childhood/school crush.
Because I mean we basically know that this started with the promise and went on all the way to high school, for both of them.
And I also think it's been made pretty clear at the end that the promise wasn't as important as Raku (and Onodera) have always thought it was.
I think what the author was trying to hint at this whole time was just the fact that what they were experiencing wasn't the sort of mature love (this sounds wrong) that was developing between Chitoge and Raku.
And they both realized this at the end, which is why they've been able to give up (although hardly).
This also explains why there has never been any real development between Raku and Onodera other than stuff that had to do with the promise (because, well, she was his promised girl after all), while you can clearly see the relationship between Chitoge and Raku develop.
So in the end, of course Chitoge had a lot more going for her than Onodera.
This however, still doesn't mean that I'm fine with this ending because I just don't like Chitoge's character as much as Onodera. So it would've made me more happy to see her happy and not as heartbroken as she was, but per the above criteria I ultimately think that she'll be able to get over it (I mean everyone else who was rejected was able to get over it).
TL

R: RakuxOnodera would never have worked on the same level as what developed between Chitoge and Raku, I guess. So we have been believing in a 'false' ship this entire time (Komi you bastard).
Still, I'll never regret having fought until the end.
Once Team Onodera, always Team Onodera.
EDIT: oh and also another reason why Onodera was the last girl to get BTFO was so that team members wouldn't leave the manga prematurely such as what probably happened after the Marika arc and when Tsugumi gave up.