Hi Tom
I think that the best way to find out is to give them both a try. Each one will have its own advantages and disadvantages - as everything in life.
The uTasker is unique in its real-time device simulator. If it includes the features required for a particular project it will generally enable shortest time-to-market and smallest memory size compared to most other alternatives.
Try a small project, see which is easiest to use, ask questions when something is not clear, see which runs best and compare code sizes, and find out which you would be most comfortable with for the next serious job....
Good luck
Regards
Mark
www.uTasker.com