Unfortunately you can't order the Moonlander without switches and save some (relatively tiny amount of) money, even if you are planning to use some "premium enthusiast switch" from the start.
So, it wouldn't be stupid to pick a switch with a higher likelihood of being one that you could like.
Kailh's and Cherry's quality is comparable, in my opinion. The issue is which switch characteristic you are likely to enjoy the most, and that is largely up to personal taste.
My personal opinions:
- I wouldn't use a "speed" switch for typing. The pre-travel is too short. The Kalh Gold, Silver, Bronze and Copper switches are all "speed" switches.
- I like to install O-rings for sound damping. You can't use O-rings with BOX switches.
... and that would leave Cherry MX Blue and Brown.
Of these, I would choose MX Blue if I'm going to use it at home and don't have to care about the noise. I would still use them with O-rings, to isolate the click sound from the sound of bottoming out. I would also lubricate them.
However,.. the Kailh BOX Brown switch also has some fans. It is slightly more tactile than Cherry MX Brown, with the tactile point higher up ... but not as tactile as many tactile enthusiast switches or Cherry MX Clear.