Mascherano. I have admiration for him since he's been crucial to us in defense despite that not being his native position. He's had his clown moments but he's adapted rather well.
As for Busquets, I'm assuming if you say "among fans in general" you mean educated/logical fans with some common sense and not 10 year old idiots who get all their information from internet memes. He does get the respect he deserves in terms of ability, even if he is wrongly accused as a serial diver.