Dragos Manea, you can disagree with me. But without numbers, I tend to ignore those claims. You've probably seen many similar claims from rubix that have tested most (if not all) AiOs.
I (as well as most people) don't care about AiO perfromance at 334537895692K RPM. If you want that noise, you can also put such fan on air cooler. Personally, I can barely tolerate 1400RPM fan noise.
The advantages ...
dumping heat into case - what if user installed the aio as intake ? if the AiO is exhaust, the effectiveness of it is significantly lower as it's using heated air.
Better for components ? usually with air coolers, VRM and RAM and other components are cooler. Simply because the air is moving over them, which is not necessarily the case with AiO. And I know that because I do custom loops for well over a decade.
What is the relation of SLI setups to AiO ?
and wait, a 170$ 360 AiO is performing with 0-3C difference from an half priced air coolers...
https://www.techpowerup.com/reviews/Corsair/Hydro_Series_H150i_Pro/7.html
With 280/240 the gap is smaller or in favor of air coolers.
and the above is on open bench. in a closed case it will perform worth than tower cooler.
So please, be welcome to share an AiO that performs better (4C or more difference) than lair cooler at the same noise level (remember, with numbers).