I like my air cooling. The only time I messed with water cooling in PCs was with a AIO, and it exploded and took out most of my hardware. My dead hardware pile:
I tried letting it dry, and tried cleaning the stuff, didn't work. It particularly stunk too, as I had won the silicone lottery that time around, that was the best overclocking CPU I've ever gotten. I replaced it with basically a similar chip, just the next generation, and I couldn't get much much of an overclock out of it at all.
So now it's always air cooled. You'll noticed in the picture about of my son's PC, that's an air cooled 12900k, my PC is an air cooled 13900k:
