Impulse, as you probably know, they're 2 different kind of planes, the super is a sport plane, while the dazzler is a fun fly sort of thing.

Since you're going for ARF versions, I say choose the Super Sportster.
The dazzler ARF is not a very good plane, has very weak structural problems and the covering... well there's a post on it allready.

P.S. I have both planes! Both in kit, and still building both of them...