Haha, I don't know. Maybe because he does the Thurs/Fri afternoon Golf Channel coverage more than one would think. I enjoy him more during the week than when he's with Nantz. I actually think he's a bit more unfiltered and dare I say "zany" compared to the more straight-laced repartee with Jimmy N. I don't dislike Nantz, but he's a bit too pomp and circumstance on the air and I feel Nick doesn't get to talk enough, but man he can deliver one helluva eulogy (see Arnie's funeral). Final thought on Sir Nick, when he has more of a running dialogue with just one guy, whether it be Gannon or Byrum, he does a better job of conveying his thoughts and insight IMO. When he's competing for time on air with Nantz, Kostis and IBF, he just gets lost in the shuffle.
PS -- I love Trevor Immelman in the booth, just the right amount of enthusiasm and awe without being a fan boy. Not to mention he knows strategy and what it takes to win under pressure. Shame he didn't have a better career.