This is a tremendously good idea, and I sure hope it will be used!
Maybe a little improvement to the survey would be to add an "underpowered" option (cauz my guys get shredderd by anyone but the pirates) and a "no opinion" option: I see Scy got 2 vote on well balanced plus 2 absentions and that divide their balance score by half.
I don't know if it's possible via googledocs, but a presentation like this
Mod Name: Ovepowered [ ] Powerfull [ ] Balanced [ ] Underpowered [ ] No Opinion [ X ]
with the tick in no opinion by default would be more user friendly in my opinion.
Anyway, good job on putting that up!
PS is there a time reset or something if someone update a new version of it's mod and want to see what people think of it then?
And to be in the Topic subject, my favorites and I think balanced mods are (unsurprisingly) Blackrock, Interstelar Imperium, and Shadowyards!
I also play with Tup, Exigency, BGE, but only to oppose them.
Then there are Neutrino and Valkyrians: the first has balanced weapons but overpowered ships, and for the second it's the opposite (exept for the fighters)