Do u think Hans would have been a good ruler of Arendelle?

Yes, I do believe he would have been a good ruler of Arendelle and succeeded... had Anna not gotten in the way! ;P

Copied from my.answer in the Frozen club because I'm too lazy to type.it again:

I don't know if I'd say good, but I think Hans would've been an adequate ruler. If he planned to hurt the people of Arendelle, I think he would've done it after Anna left him in charge. He didn't think she of Elsa would be back, and the people would've been too frightened of the eternal winter to challenge him. He had the opportunity, but he didn't take it. Instead he treated them with respect and made sure they were fed and warm, so he couldn't make too bad a king.

Also, Hans only tries to harm people when they stand in the way of something he wants, so I think his reign would work like a trade-off. He would provide for their needs as long as they didn't challenge his authority, anad they wouldn't challenge him as long as their needs were met. If nothing else, he would care for them because he would have no one to rule over if he hurt the citizens, and then he would go back to being ignored and powerless. It doesn't make sense that he'd allow that to happen, especially after taking such drastic measures to rule.

I think yes. He just wanted a kingdom to rule, that doesn´t mean that he would have done things wrong. I think he would have been a good ruler because he was smart and brave, although he uses those virtues in the wrong way