Please tell me what
Pippin ever did that had a positive impact? Just about everything he did was negative. I guess maybe you could say that he had a positive impact because he was responsible for getting
Gandalf killed, and then Gandalf came back to life as "
The White," but that was purely by accident and coincidental. And even if Gandalf did come back even better, Pippin was still negative because the fellowship was without Gandalf for quite a while, and who knows if the
Boromir would have died, the fellowship would have been broken, etc. if Gandalf were still with them?!
And then, I guess you could say again that Pippin looking into the
Orthanc Stone was a positive thing because it attracted
Sauron's gaze towards him and
Minas Tirith and all of the captains of the West. But again, that was purely coincidental. Pippin did everything out of pure stupidity if I may say so myself.
So, in conclusion,
Merry definitely had a much greater, postive impact on the story. He dealt the blow that allowed the death blow to the
Witch-King, that's enough of a positive impact for him to beat anything else Pippin could have done (unless of course Pippin were to waltz into
Barad-dur and chop Sauron's head right off, but that didn't happen so it doesn't matter).
