Favorites are easier than bests which are ofcourse opinions.
"Outward Bound" by Tom Paxton for the love of a woman or a man. "Power and Glory" and "My Land is a Good Land" by Phil Ochs and Eric Anderson respectively for love of country. "Where are you Going" by Malvina Reynolds for love of a child. " All for the Love of Lynn" By Woods Tea Company for loves lost, (Title may be wrong here.) "Zippidy Do Dah!" for the love of life it self. "In The Garden" for love of God.
These are my votes, I'll probably think of more.
Don