Favorite Song In Rock Band?

State the song. Please explain why because I don't wanna have to lock the thread because of lack of discussion...

Mine is Run To The Hills. It's a song that puts me in a good mood(subconsciously I enjoy raping and beating Indians maybe?) and gets stuck in my head but in a good way.
It's challenging on Guitar,Vocals, and Drums(don't know about bass) and I love a song that makes me try hard.

Well, I love to play a couple of songs. I like Tom Sawyer because a)It's challenging on drums. b)It's fun to sing. I also like Foreplay/Longtime because a)Every time I play it on drums, I'm on the brink of failure on Foreplay, however, I'm getting better at it. b)It's just fun on drums.

And Run To The Hills is as crazy on Bass as the other instruments.

Dang, that was a long post