For me if I had both of those I would keep the 8000, but it would depend on condition. If it were a resist 8000 then it would make it harder. And if it were a proof 8110, harder still and likely keep the proof 8110.
As it is that both are fairly typical of the series, although 8119s are enjoyable a little more for me if it has a daini signed rotor and caseback, I'd pick the one in nicer condition to keep. And if there wasnt much between them, probably the 8000 stays.