For me, a favorite album is one that I can listen to all the way through without skipping any tracks, and one that I've listened to a WHOLE HELL OF A LOT. They usually become car favorites for me.
In no particular order:
Led Zeppelin - Led Zeppelin III
The softer side of Zep! Since I've Been Loving You is one of the most amazing songs. Bron-Y-Aur Stomp is also a great one. That whole CD just moves me.
Cat Stevens - Tea For The Tillerman
I have listened to this album probably 3847038473028473 times. Amazing. I kept this CD in my car on repeat the summer after I graduated from high school - I was usually the one driving when I went out with my friends, so it's near and dear to me and those friends I don't get to see very often anymore.
Mando Diao - Ode To Ochrasy
It rocks. Once again, this one got me through a few long car rides. It wasn't love at first listen, though. …