Stalemate IMO.
Only a great light could put out a black lantern...
Two indestrucible forces going up against each other ends in a stalemate
__________________ Quotes from Hia8:
"I claimed that the science is sometimes faulty."
"You don't understand. This is fiction. That means none of this stuff really happened."
"There is no writer to purposely ignore a character's natural ability just because it suits the story."
"in some cases because the writer knows that Character A will dominate Character B easily and refuses to allow this to happen for the sake of the story."
Didn't we already (practically) see this when Etrigan was put up against a BL? He can affect them but not destroy them. They see him as a fuzzy, ill-defined thing. RKT would kick both their asses, though!
Does it really matter which BL it is? All have that uber regeneration, and they all have the power of the black ring. They can all take your heart out. So far in their appearances, they are just collecting the emotions slowly, but they are much tougher. GR's most powerful attack wont help since they don't have a soul