We'll have to agree to disagree on Supertramp, I'm afraid, mmakshak.
Most of my favourites are 60s and mid-70s, too, but my opinion is that while there were many great bands that came out of that time, there were some stinkers, also. As to which were which...well, maybe our tastes don't coincide. Good to see a difference of opinion without rancour, anyway!
Cheers!