Band of Gypsys and Live at the Fillmore East are my favorite Hendrix albums. Even as a kid, I felt like that era was the most himself Jimi ever was. Axis and (particularly) Are You Experienced always felt like compromises between what Jimi wanted to be (and was) and what Chas/ the industry were trying to make him.
And Changes is an amazing song. There's a Santana/ Buddy version from a few years later that's equally amazing.