Multiplayer mobile games: P2P or client-server?

Hi, I want to build a multiplayer (2-3 players) mobile game. I'd like to know what is the most common architecture for this kind of games: 1. P2P : Players mobile devices communicate without a server's help. 2. Server-Client: Clients do not communicate directly with each other, but send each move they do to the server. How do most mobile games do it? thanks