I switched to Amazing Weather HD, though I wish it had the functionality of the app I had on Android (MyWeather). Regardless, it is miles ahead of the Weather Channel app, which never updates its live time and takes forever to load. The new versions (2.2) was actually slower than the previous one, which is hard to believe.
My biggest complaint to date, is that Amazing Weather doesn't have an animated weather radar. I live in an area which is very prone to tornadoes. In fact, it is one of the top few highest frequency for them in the country. As such, I rely heavily on live weather radar with animation so that I can see which way storm cells are moving, if hooks are forming, etc. For any weather app to not have this is a major omission. They need to get one which updates at 5 min increments, soon.