Here's a basic summary for each site:
Giant in the Playground is definitely in the middle of things. Although it's aimed at dice games, it's very clear it has a big userbase and is apparently growing. If you want a pure normal forum, this definitely seems the way to go.
Giant Bomb seems to be a more "mainstream" gaming forum. It's like a combination of Gamespot and the Escapist for better and for worse. For us Escapist users, it's probably gonna be the most familiar of the three.
RPG Codex seems to be a lot like Giant in the Playground but a whole lot more mature. Personally, I've gotten very used to such environments a long time ago so I'll be right at home in a way, but like Frankster said, it's probably not for everyone.
EDIT: There's also the Facepunch forums ( https://facepunch.com/forum.php ) which I found out about too late, so I can't add it now, but if enough people post in favor of it, I'll start another poll. It's got some nice loose but fair rules and it's very active. Supports custom avatars and animated ones as well.
EDIT 2: Giant Bomb wins this one.
Giant in the Playground is definitely in the middle of things. Although it's aimed at dice games, it's very clear it has a big userbase and is apparently growing. If you want a pure normal forum, this definitely seems the way to go.
Giant Bomb seems to be a more "mainstream" gaming forum. It's like a combination of Gamespot and the Escapist for better and for worse. For us Escapist users, it's probably gonna be the most familiar of the three.
RPG Codex seems to be a lot like Giant in the Playground but a whole lot more mature. Personally, I've gotten very used to such environments a long time ago so I'll be right at home in a way, but like Frankster said, it's probably not for everyone.
EDIT: There's also the Facepunch forums ( https://facepunch.com/forum.php ) which I found out about too late, so I can't add it now, but if enough people post in favor of it, I'll start another poll. It's got some nice loose but fair rules and it's very active. Supports custom avatars and animated ones as well.
EDIT 2: Giant Bomb wins this one.