I'm taking the cop-out answer, that it depends upon what our goals are and what we define as "better." Some of the types stereotypically think the world would be better if structure were removed and people were 'freer,' while some think that it would be better if some of the chaos that's out there were better organized. It's the balance and 'competition' (perhaps 'coopetition'?) among the ideas that are generated from these differing approaches that keep us moving along, but that keep any one approach in check and prevent it from dominating. Ideally, I wouldn't want everyone to think as I do, and, more generally, I wouldn't want everyone to think similarly.
If I were forced to choose, I'd say ENFJ because I personally value insight, cooperation, drive, and a degree of pragmatism--and I think that, if we're going to have one set of qualities embodied by everybody, that ought to be it. ISTJ would be a close second, and, in general, I'd pick most J types over most P types.