^ I don't believe there ever really was a Nimoy/Shatner feud, per se. Certainly not like Shatner/Doohan or Shatner/Takei.
I think Shatner and Nimoy had their moments of disagreement during the run of TOS, some of them rather heated and contentious. But I don't think either ever truly harbored personal animosity toward the other. Both are on record, both in interviews and in their respective books, as saying that they always liked each other, and that their disagreements were more like family squabbles and blown way out of proportion by the media.