All depends on what you plan on using the truck for.
If you want to go racing either are good cars and the scte has now got some decent setup a which has allowed it to catch up to the durango sct. And 4wd sct is a good fun class. However 2wd sct is the more popular and more subscribed too class and is a very competetive class in which the 22sct is going to be one of the top trucks
If you intend on bashing the truck aswell best bet is the scte. Built like a tank and can take the knocks and keep running. 22sct still very strong but definitely more of a race machine
Have owned both trucks and love both trucks. So really only down to how many wheels you want spinning and wether its just a racer or not