There are 90,000 people registered on this forum of which 30% may own a D2 (At a guess). If you add in the number of people not registered that's one hell of a lot of owners.
I don't think you can say therefore, that any one model is better than another. Sure, you'll get problems but for instance my 1999 D2 has been fine but you need to be a half decent mechanic (with mechanical diagnostic skills) and service your vehicle on a regular basis.
Remember, some D2's (like mine) are 13 to 14 years old !