OK...there's all sorts of criteria...and just like John Cusack in Hi Fidelity, I could come up with Top 5 lists forever...but...Top 5 albums of all time...
Here's mine:
1. Beatles - Let it Be
2. Led Zeppelin - IV
3. Stone Temple Pilots - Core
4. Smashing Pumpkins - Melon Collie and the Infinite Sadness
5. Beatles - Beatles (White Album)