Their not really a best case, their a bunch of good cases with different looks. It really depends on what you like your the one going to be seeing it every day.
Then you take into consideration of if your water cooling, like RGB amount of drives being used along with other parts.
EDIT for example if I was buying a new case today I would buy this one and add blue LED fans. Good case (just as good as any) has the looks I like, I rather have just blue led fans not RGB but that is just my likes you can ask 100 different people and get 50 different answers.
https://uk.pcpartpicker.com/product...te-tg-atx-mid-tower-case-fd-ca-mesh-s2-wt-tgc
Then you have people that will just buy a budget case...