The one thing keeping me from making jopensim into my preferred frontend is that atm you can not select a standard avatr when you register. I found that the opensim default avatar often leads to some irritation esp for new users. Giving them a preconfigured avatar mkes their first time experience much better.
I totally agree with you! It is since quite a while on my ToDo list already, but there are some issues with it giving me a bit of hard time ... but no worries, one day jOpenSim will have this feature for sure