I don't care one way or another about split grips, I like them both.

On a side note, a long handle rod (full cork) can float in the event of an overboard incident. Telling for a friend.

What ever you prefer, being familiar or in tune with the handle and reel seat is as important as the material itself.  Familiarity helps to detect irregularities which just might be the bite.  As Ty said in Caddy Shack, be the ball Danny.