The Scripts will probably sound a LOT better than the Frescos, because they are true ESLs, and have a much bigger woofer. However, neither of them will probably give you enough bass for a HT system, so you'll probably want a sub too...
Anyway, both have their plusses and minuses. If you intend on using those two front speakers for listening to music as well as HT, the Scripts will probably sound better. If you'r emore concerned with the way they look, and have a serious SAF issue, you'd probably be better off with the Frescos.
And although the scripts are really just mini versions of, say, the Aerius or the Aeon, they DO have limited bass response, and if you hang them on the wall (rather than standing them on the floor) you will sacrifice a lot of the open airy sound that ESLs are known for.
I think the Script is a nice speaker, and offers great "bang for the buck", especially if you can get a set used in good condition. I don['t really care for the Fresco and that whole line, with their ribbon drivers. The way I see it, if you're going to lay down the bucks for ML speakers, you might as well get real ESLs...
Of course, this is just my opinion. YMMV...
--Richard