well the 50s are what made Elvis so famous, but i became an Elvis fan because of his passionate live performances, i listened to 'the wonder of you', how great thou art, i can't stop lovin you' etc, and so the first boxset i bought was the essential 70s masters, i just loved the bellowing quality in his voice, which i have tried partly to copy, and the passion he put in to the songs above
but as time went on, i began to broaden out, lately i have recognised that the 50s WAS the decade that opened the worlds eyes to Elvis, the young sexy 21 year old who swivelled his hips to rocknroll and music history, and i appreciated that fact by listening to the live Little Rock 56 recording, the kind of uncontrolled animalistic show that managed Elvis to let go. when i listen to 'that allright mama, heartbreak hotel, and hound dog, THESE are the recordings that made Elvis the phenomenon
and then in the 60s we find a kind of controled maturity that is light years away from what he was, he works hard to make his voice perfection while making his emotions clear in the songs.
this is how i think of these decades
i enjoy both the 60s and the 70s for reasons above, but i'll have to go with the 70s as my fave decade