Messi been good but his shooting has been woeful lately, he's probably pissed with himself lol. Rakitic as a CDM is his best role for sure these days. He wasn't looking good when pressured early on but as that faded, he looks good when he can sweep up and isn't under pressure.
Ansu's worst performance since the break but he still got some good looks/created more danger than Griezmann. 17 year old will still be developing confidence/authority in his game.
Puig is definitely the best midfielder out there today and has made the right plays at the right time. The intuition is awesome, and honestly if he keeps playing like this Barca desperately needs that in this team. Showing more dimensions to his game than Arthur has for us bar a few performances.