Everyone has there own ideas of which system is best and why. Personally, I prefer Mechanicals, but I will also admit that I avoid using the cheap ones, and I don't use a nose gear.
A set which I designed will be hitting the market in a week or two. These are The BEST mechanicals I have ever used. And I make no profit from them, so I'm not just Looking to make sales, I say they are the best because I really feel that they are better than the rest.
More info can be found here:
http://www.3dxhobbies.com/cart/index...products_id=63