Age old question
Feel them both out, then go with what you like. Remeber this - if you are going to be the skipper, you are going to spend a ton of time with your hand on the wheel/tiller. I guarantee you that you will be happier steering your vessel with the mechanism of your choice - imagine buying a boat with a wheel, only to steer your slip mate's boat and find you prefer a tiller... Or vice versa for that matter.That being said, I have a C-27 (a good bit heavier than a C-25) and I love my tiller. I have driven a wheel, and will concede some of its advantages. However, I really like the feel of the tiller. It is a very visceral thing to be directly connected to the rudder.In any event - you are gonna have a ton of fun. Best of Luck -Rob