>>715422257 (OP)AiO is for people who can't into plumbing.
It's a cheap bundle of components with some Rgaybehs to make it look classier.
It's not that hard to put together a custom loop and distilled water means you don't need to give too much of a shit about initial leaks.
Aircooling is just polishing a turd, trying to somehow finagle airflow into a mostly closed box. You end up with monstrosities that block your RAM and barely fit into your case.
Just route some tubes out of your case to an external rad.