This makes more sense than anything else.^About voting categories… there's nothing stopping people from doing their own sub-categories. I did one for Best Ladies Frame and decided what bikes to include. Renaissance Man did one for Best Photo and chose to include all entries except his own.
Since putting up the Best Ladies Frame voting thread, I also thought of doing a Best Unfinished one for everyone that didn't make the deadline, but decided not to this time. The point is, if you want to start a thread for a particular category such as Best Paint or Best Wheel/Tyre Combination or whatever, then just do it. It's your thread so you make the rules for voting in it. You decide what gets put there to be voted on. You decide what, if any, prize there is. It's pretty simple really
There is no way to set this up that will please everyone. In the three years that I've participated, Steve has tried various rules to address these concerns, and every year a similar debate emerges. The thing is, with the current parameters, everyone gets to build the bike that they choose to build. How can it be any better than that? After all, win loose or draw, you are left with the bike that you built.
As Glen pointed out, if you're passionate about a particular aspect of bike building, you can set up a sub-category with whatever rules that you see fit. That would just add to the fun!