I'll let you guys in on a secret about the RL and the BFG: The damage listed is just the impact, the blast also does damage.
Fingerzam: did you keep the IRC log of when Kornel spilled out the numbers?
I don't have logs, but from my memory (which is not to be trusted in this case) I think RL had 6d4 (or 6d6) explosion damage and BFG had 10d8, but these might be completely wrong.