1. Answer: It depends on everyone's taste and these rankings change all the time. According to RankMyPorn, at the moment, the top ranked Who Cares Male Pornstars in the world are: Tommy Gunn, Marcus London, Mark Ashley, Luke Hardy, Tyler Knight, Frank Gun, Van, Jay Snake, Marco Banderas, Michael Stefano, 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.