Y21_RoyalSeal The things that grates me with Barcelona is the unnecessary play acting whenever they get challenged. Yet when the exact same happens to them, they are all over the ref complaining. Massive double standards.
The refs do seem to favour them no question. Look at the Inter Milan sending off last season as well.
Utter nonsense. Yes there are a few Barca players that play act (busquets being the main culprit) but they're no different to any other team. If anything they're better because like Messi, Villa & Iniesta will stay on their feet and get the shot away. Given his stature and the amount of hefty challenges that Messi gets, it'd be so easy for him to fall over every time anyone's near him but he doesn't.
Refs favouring them? Seriously? So the penalty that wasn't given for the foul on Pedro and Messi's disallowed goal were what exactly? The RvP sending off was a poor but for all their possesion and territory, where were all the free kicks from the dives and biased refs?

Dani Alves get's tapped on the ankle, dives theatrically and rolls around holding his shin.
Jack Wilshire goes down easily (shock horror maybe even dives) 10 minutes later. Barca players try to yank him to his feat, and have a go at the ref for letting him in their eyes feign injury.
Citing the brilliance (and sporting nature) one of Messi does not excuse the rest of the team, nor does it make what I said 'utter nonsense'.
As for the refs favouring Barcelona, I'm not talking about errors on major decisions (as that would be nearer corruption than favouritism), they always happen in football, and it's childish to talk about one pen decision vs another sending off. What I'm saying is that as a neutral, it always appear the refs tend to be more sympathetic to Barca when it comes to the smaller decisions, e.g. fouls & 50/50s. Maybe this is because the refs subconsciously favour the superior team who are doing the attacking. You asked for stats and they tend to back this theory up.
Possession - Barca 68% Arsenal 32% (so 112% more possession)
Free Kicks - Barca 19 - Arsenal 8 (137% more free kicks)
Not saying that categorically proves anything but since you asked for them...