Well, I wouldn't say my most favorite but it is certainly one of them (The Song pretty much ends at 4:20 even though the Video is by a few seconds longer. Just saying).
First of all, today I learned that there aren`t much songs, if any besides this, at all in my playlist that would be exactly 4:20 min long.
Second of all, this was first song with the exact length I found and I was not disappointed. ^.^