The reason for going for 120mm AIO cooler is because I may go for some mild OC down the road, and I would expect it to be slightly better than an air cooler. Here’s my setup.
Case : Silverstone Raven RVZ03W
Motherboard : ASUS ROG Strix Z270I
CPU : Intel I5-7600K
Small Form Factor (SFF) V4, Mini but Mighty