Long time lurker, now I say hello.
I use these keyboards:
Leopold Tactile Click (FC500RC/AB; Cherry MX Blue) - home office rotation
Leopold Tenkeyless Tactile Force (FC200RE/AB; Cherry MX Clear) + Leopold Tenkeyless Keyboard Carrying Case - travel keyboard
Topre Type Heaven - home office and work rotation
Unicomp Ultra Classic Black - home office rotation
Das Keyboard Professional Model S Silent (Cherry MX Brown) - work rotation
Basically, I can't rotate the loud keyboards to the office--people complain (cubicle farm).
My order in preference of keys are:
Buckling Spring
Topre Capactive
Cherry MX Brown
Cherry MX Clear
Cherry MX Blue
Have not used the other key types.