Massive maps, 10 man squads, in game platoons, in game VOIP, hundreds of players engaged in vehicle and infantry combat, that's planetside 2, imagine what BF3 could have been if Dice did no sell the franchise out.
BF3 got old a few months in, players are just grinding for worthless stats and shiny things. Planetside 2 innovates and refreshes the FPS genre, something BF3 never even attempted to do on PC. If anything it went backwards compared to past games, from map design to team work tools, lack of standard PC features like VOIP, spectator mode and battlerecorder.
This is one of the reasons I refuse to put anymore cash in EA's and Dice pockets, they won't even bring the game up to previous titles standards, but are a happy to spam us with tacky premium content, 50% of which we have no clue what it's about.