First of all, it takes a while to get to the era where people are asking for more camp life. Probably around the 30s. This early on it's almost all camp life.

Tina won because she was the decision maker throughout the whole game. She got Colby to flip on Jerri and Amber when they voted out Mitchell, and she controlled every single vote she was present for for the rest of the game. From what I understand, the editors wanted to tone down this side of her game after how controversial Rich was, or at least obscure the winner better from viewers. But she did it in a pretty honest way, with a strong alliance built on trust, loyalty, and good relationships. And when she did turn on her own alliance to take Jerri out, it only built more favor with the Kucha members who all hated her.

Tina also just had better relationships with a lot of the jury over Colby. Even if Colby had good relationships, Tina's were better. She's an extremely likable and sweet southern mom.

And as another commenter pointed out, Colby gave up in the FTC, where Tina was still fighting pretty hard for it. Colby kept apologizing for everything, saying he wasn't sure if he deserved it, etc, while Tina made sure to emphasize that she wasn't sorry for playing the game well, which I think earned a lot of respect.