For the ones that hold multiple models which is the order i should look at when purchasing. Best to worse. Is th dx3c something that would be good

They're pretty much listed in order on the Spektrum site with all the specs you need.

Thanks. I kinda thought that just checking. What receiver would be best for a 22t?

Do you need/want telemetry or DSM2 w/fast frame rate (assuming your servo supports it)?
I'd immediately rule out either of the 'E' models. I didn't need the Pro features, but did need 3channel. I got the 3C and am more than happy with it.
The choice of receiver would be based more on the transmitter used than the vehicle it's going in.

I ended up buying a 3c