I realize there is a "best song" thread here, but as many pointed out, it is very biased due to personal preferences. Here, you just name your favorite songs, regardless of genre.
One that's always nice to listen too is Pet Sematary - Ramones It's hard to have one all time favorite, it's more what I'm into at the moment.
Pretty much anything by tech n9ne. Except for the songs with the wierd lyrics. But he can rap so insanely fast. If you want to hear something insane, look up "what we are" by Potluck and tech n9ne and listen to the second verse. Anything by the Lonely Island is good too. Idk I don't really have a favorite song. Whenever I hear a song that i like i put it on my ipod and my ipod is on shuffle so...idk I like all my songs equally