Let me start by saying Sins is a great game. I've had lots of fun playing it and I feel like I'm just getting started (good replay value).

But to me, the diplomacy option of the game is just not fun. Establishing and keeping good relationships with AI players is tedious and boring. I'll be working on some strategic goal, only to be interrupted by a request to destroy 5 of whatever. Sure you can ignore the requests, but then it always ends up with all AIs against me. Which can be fun. But it would be more fun to have more alliance options without being forced to do non-stop "kill 5 rats (oops, ships)" missions.