It would have been good if there was some sort of Wiki page, where all major allegations against Witnesses along with their responses to the allegations were compiled on one page. Also their contributions and related controversies can be compiled there itself.
It would be great if we had a comprehensive list of all the witnesses and could match our votes with the people who's aims suit us best. Sadly this is not to be the case. Like most politics it comes down to who you know.
I have voted for thirty witnesses as there is a principle about voting in my country since so many of its citizens have died over the years to attain that right for us. Most of mine are in the top hundred that i have come across since joining and then their are a handful with whom i have had personal experience and like what they stand for or what they are involved in.
For most of the smaller users on here we have no interaction with the whales and don't have a proper understanding of how the technology operates so it will be very hard for us to vote on that basis. End of the day it will probably come down to who we like the best.