When it comes to Cherry MX switches, browns are my favourite. However, on a trip to the States earlier this year I bought myself this beautiful beast:
View attachment 24709
A Unicomp Two-Tone Ultra Classic Model M.
Unicomp has the license from IBM to make Model M keyboards using buckling spring switches. It is the greatest keyboard I have ever owned.
This very much look like the keyboard used by bond market traders' (and desktop support staff) at Citibank, Canary Wharf London). Back in the day (2005).
They where EXTREMELY expensive !

... never used anything else except for keyboards from my 1980's and 1990's days.