Title pretty much sums it up. Would you guys enjoy a evil and merciless scumbag/bandit to fear and struggle against like the Governor? Or how about just another survivor who is looking after his group, who you are forced to fight for food and supplies? Or would you rather have no main villains and just struggle against walkers and bandits episode by episode? There are a lot of options.
Personally I wouldn't mind encountering another group in Season 2 and in episode 1 you work with them and both groups cooperate. However as time goes on and the situation becomes desperate, things get tense and you struggle to stop fights breaking out and both groups outright fighting.
Just an idea. What do you guys want to see in Season 2 in terms of antagonists?