Atreides said:This somes up my issue very concisely - a system which actively encourages dump states is disappointing - hopefully 4e does not have this issue - but it certainly may given what we have seen so far.
It looks like the system encourages you to have two or three dump stats. Since one of two stats appears to be used for defenses, and the classes seem to revolve around a primary stat and two secondary stats, you can leave everything else alone.
The better classes will only require one score from each 'defense group', and they can just ditch the other three stats. Some of the other classes will have to double up on grouped ability scores, which will put them behind on a class stat or a defense stat.