Peavey made some good amps in the '70s. My friend has one and I wish i would of bought it when I had the chance. It's a 212 all tube, 60watt tweed combo. I forgot the model number but it had some great tone!
Old Marshall Plexies are also awesome. That's what Alex Lifeson would play back when Rush was cool. He had the best tone on that live "All The Worlds A Stage" album.
Oranges are also awesome sounding amps. I have another friend that has an old combo and it rocks.
I currently own a Fender 212 DeVille and it has the best tone! What made all the difference in the world was shitcanning those Sovtek tubes and replacing them with JJs. The bad part about the DeVilles is that if they didn't have a 5 year warrenty, they wouldn't sell. I've had mine 3 years and it has been in for repair 6 times! But I love the tone of that amp. It has everything I need. I play through NO effects. I do have a Crybaby wah-wah but I hardly ever use it. For rock, i use my Les Paul. For mellower stuff or country, I play my Telecaster. The Fender DeVille has everything I need tone wise.
My friend also has an old Airline. It's got an 8 inch speaker, 3 tubes, an on/off/volume knob and a tone knob. When we recorded our demo, I used it on a couple of tracks and it was pretty cool.
Solid state sucks. I have
a Marshall 8080 valvestate and it's ok for a hybrid but, I like an all tube amplifier.
Line6...I won't go there!