Though I'm still a hippie, 90% of my work for the past 6 or 7 years has been straight ahead jazz. Use a SF Twin Reverb for loud, a Polytone Baby Brute for quiet.
Heard both of those Fenders in Vegas at shows/ lounges, tried the Jazz King. My vote goes to ...
65 Twin Reverb Custom 15. No contest.
For a solid state amp, I'd get a used Peavey, one of their many 100+watts 1-15" or 2-12" amps from the 80s. They made a lot of stuff in the 70s and 80s with country steel in mind, and they're all clean and loud.
Tubes sound better, even clean.