[elfling]

I believe only a Hobbit could have carried the ring so Sam would be a guess but if he is forced to do this due to Frodo's death then he might be to grief stricken to carry ouyt the task. it is possible that with the maturing and growth of merry and Pippin they might have been the only ones strong enough and resistant to the evil of the ring to attempt the task. At the end they bravely threw themselves into dire situations so they might attempt this together as Frodo and Sam did but alone I think anyone of them would fail.