I put today's Invisible votes into my 2012 Rate the Song spreadsheet. With 88 votes (which is, by a fair amount, more votes than any song got in 2012 Rate the Song), Invisible has a mean rating of 7.69, with a standard deviation of 1.37 points. Putting it with the 2012 votes, this would put it in 83rd place among U2 songs, right below Mothers of the Disappeared, and right above When I Look at the World. It is a few ranks down from Vertigo, and rather far ahead of Boots.
Thoughts? Seems a little low to me. Obviously, though, it's hard to put too much stock in a comparison between Invisible's votes in 2014 and all of the other votes from 2012.