Given that both Adblock Plus and uBlock Origin ("uBO") uses EasyList to block ads, this is a dubious claim, requiring at least some evidences.
Now add to this that uBO supports filter syntax not available on ABP[1], this makes your claim even more dubious. Feel free to provide actual examples.
[1] https://github.com/gorhill/uBlock/wiki/Static-filter-syntax#...
Perhaps I'll give it another try, but honestly, i don't notice any adverts with ABP so i tend to forget it's even there. I definitely noticed when uBO was installed.
The claim:
> still see some ads using Origin, where with ABP I don't
... is definitely dubious. I still have to see such vague claims to be substantiated, with actual examples of where this happens.
Once in a while someone will provide a URL in support, but it turns out upon investigation that ABP also suffers the issue. I can readily provide URLs where it's actually the opposite, uBO works where ABP does not. For instance, try:
https://www.merriam-webster.com/dictionary/Internet
http://kissanime.ru/Anime/Demi-chan-wa-Kataritai-Dub (click on an episode link, start the player)
I absolutely don't mind if people prefer ABP (or whatever else blocker) over uBO, but I will dispute vague baseless claims made about uBO. Surely one can prefer ABP without resorting to spreading misinformation.