1. Answer: It depends on everyone's taste and these rankings change all the time. According to RankMyPorn, at the moment, the top ranked Blondes Male Pornstars in the world are: Matt, Luke Hardy, TJ Cummings, Tyler Nixon, Ryan Mclane, Denis Reed, Thomas J, Ben, Michael Fly, Kabra, but these will change based on what people vote.
2. Answer: It changes. You can see the latest rankings on RankMyPorn.com and also vote on it for free.