Mxsmanic wrote in
:

They are, IF they are overdriven. Tubes handle distortion in a more
audibly pleasing way than do transistors, and since many guitar players
deliberately drive their systems into distortion, this is important to
them.

Under normal operating conditions, transistors are better (today).

Many Jazz and Blues guitarists still prefer tube amps even for a clean
sound.

--
"Live fast. Die young." (Nikki Sixx)

-Richard Cockburn