I am a sucker for tone over heavy distortion... As such I like the amp to make up 75% of the tone with 15% from me and 10% from any FX.
For years I was OK with a Session Rockette 30 - British Built solid state amp - Clapton used these amps to record the August album on and I can see why.
After dabbling with valve amps more recently, I have clearly identified what sounds I like and where it was in a Boutique amp like a Carr Rambler or Tone King Metropolitan (and thus very expensive), I managed to uncover great deals that deliver the required tones at affordable levels.
Cornford Roadhouse 30 combo
Fender Super Reverb
Fender Super~Sonic 60 combo
Fender Tweed Deluxe
Fender Super Champ
Pignose G40V
Often I stereo-up in pairs for great clean and driven simultaneously.
Oh and a shout for my very first amp - A Woolworths Audition Piggy-Back 15w circa 1970... still works!