As for the choose between Kvaratskhelia and Nico Williams I will go for the latter as he fits perfectly into the team than Kvaratskhelia. Nico Williams experience in playing in Laliga already gives him an edge if you ask me. He will also be less expensive than Kvaratskhelia who Napoli rate very high
Yea, I agree if we look at the La liga experience, Nico Williams has it and Kvaratskhelia does not. There is also the fact that Nico has a better relationship with the Barcelona players already than Kvaratskhelia, but when it comes to footballing ability, I don't think Nico is on the level of Kvaratskhelia. Kvaratskhelia does everything better than Nico. He's a better dribbler, better passer, better scorer, and creates more chances, Aside from pace, I don't think there's anything that Nico is better than Kvaratskhelia.
I agree that Kvaratskhelia is very expensive, but I believe he would not be more than a hundred million and by the end of the summer, Barcelona will be done with the renovation of their stadium and would have moved back to Camp Nou, meaning they might not be having money problems as they do now. If they find themselves in a better situation, spending a hundred million on a player might not be a very bad idea.
Both players are good though and any one of them will be a wonderful addition to the squad, but I feel Kvaratskhelia is better.