Jimi Hendrix Album to buy?

I have the money for one album. I'm looking at "Experience Hendrix - The Best of Jimi Hendrix," or "Voodoo Child - The Jimi Hendrix Collection." They're both obviously later compilations, but they both have almost 20 songs per, which is good, and most songs in common, but some that are not on both. Seasoned Hendrix fans advice please.