File Scout is better in every way except on: file manager pro lets you see what is in a zip file without unzipping it, and also lets you selectively unzip specific parts.
File manager pro also has a slightly nicer ui (imo).
All in all though, FileScout is the better of the two - and about to get a major update I believe.
I like BatteryEx because you can create your own skins for it, and there is a free version. You can also view your battery level while in the Browser. I have never tried MeterBerry, but I understand there are a whole sh*tload of monitoring options it provides, but it's not free.