I like what the nuns do. They teach kids, the administer to the sick and poor, and they run hospitals. But I'm also a fan of Catholic tradition that allows only male priests. I don't think it will ever change and I do not want it to. But as far as teaching sunday school, I think its perfectly fine.
All kidding aside...I concur. I truly found the Sisters inspirational. I was taught by Sisters of Mercy...their order was founded in Ireland and they came to the US (western Pennsylvania) to open parochial schools and provide health care for the immigrant community. They built schools; orphanages; hospitals; and even a college. The good works and profound impact they had on their communities is simply astounding. That is why I have a hard time understanding women not being able to teach their faith to others.