it truly is a personal thing. I have the Specialized MTB saddle on both my MTB and my commuter bike and the Specialized Road Sport on my road bike. Several ppl here LOVE the Terry, and several hate it, same for the Koobi. If your LBS will let you try them before you buy - try a bunch. Also, ask them about their return policy - sometimes what feels right at the time may become torture as the ride gets longer!
and welcome to the board!....how exciting about your new bike!
Life should NOT be a journey to the grave with the intention of arriving safely in an attractive and well preserved body, but rather to skid in sideways, champagne in one hand, strawberries in the other, body thoroughly used up, totally worn out and screaming: "Yeah Baby! What a Ride!"