Depends on what you mean by built better. Many older engines (many still built today) such as Zenoah, the big Quadras, Sachs built with a real Sachs crank, etc. have excellent construction. They just don't wear out and perform right there with newer designs. Not trying to argue here .... just pointing out that we're fortunate to have many older engines along with new designs. Pretty much something available for everyones application and price range these days.

Now lets see, most modern designs are more compact. Some offer more friendly mounting to the airframe. Most are very user friendly. And .... most of the Chinese engines look like a DA! You could put a DA decal on the cowl and most of your friends would never know the difference. [8D]