1967 was good:
The Beatles released "Sgt Peppers" and "Magical Mystery Tour".
Hendrix released "Are You Experienced" and "Axis: Bold As Love" and played his legendary Monterey performance.
The Who had their (in)famous performance on the Smothers Brothers show and were riding high (though "The Who Sell Out" isn't legendary like the other albums I mentioned).
Miles Davis released "Sorcerer", John Coltrane recorded "Stellar Regions" and "Interstellar" before his death in the same year.
The Rolling Stones released "Between The Buttons"
But i still think that 1966 was better.