As far as Gundam series are concerned, I watched Turn A before Mobile Suit Gundam, and I like Mobile Suit Gundam more.
And I don't like Turn A as a gundam series, because the characters are generally typical (a hero, a princess, and character traits that are not worth remembering, the characters from other series are more likeable), the only thing I like about Turn A is the story.
So I'm just trying to say that not all people will like Turn A as much as you people do.