Honestly, I'm only planning to watch the English version because Funimation is doing it, since I'm not too fond of the anime overall. I've watched the Yu Yu Hakusho and Spiral dubs they did, and I've become very fond of the company. They have some nice voice actors (though some who...aren't quite as good), and I love it when they put outtakes and such on the DVDs. I trust them not to "butcher" the series.
I agree with people who said that Laura Bailey would be good as Sakura.
I heard they were going to start releasing the series this fall. Is that true? And they're not putting it on TV? That would probably mean no edited version (not that there's really anything to edit out of the Tsubasa anime).