There is little to gain in such a topic besides split. Arguing arts is as promising to me as arguing music. There is no point by one who likes heavy metal and dislikes electronic music to argue with someone who likes electronic music and dislikes heavy metal music. No way to get some objective data, no way to proof what is better. I struggle with this kind of decisions outside of reason.
What would be a reasonable decision if there were 10 different proposals by by 10 groups with each 10 members?
Majority vote doesn’t work well in a community like this were most users are anonymous. Encourages multiple registrations and electoral fraud.
The most reasonable decision appears to me, that those people who contribute (most) are entitled to vote.
How to other projects get such decisions done? The thing that I observed is, that they update their theme every new major release.
Any other suggestions on the decision process?