Biglobe Rankings recently held a poll to find out which anime opening is the best. Over 6800 people have voted for their favourite opening which range not only for 2012, but from fall 2011 to fall 2012. You can check out the poll at the Biglobe Rankings website here.
In first place with 390 votes is the Kuroko no basket opening. In second place with just one vote behind on 389, is the opening for Ch?niby? Demo Koi ga Shitai!. And on third place on 361 votes is Joshiraku.
Note: due to the nature of thes videos, it is likely that the videos may be taken down in the future