I really don't have a dog in this fight but what the hell... Most transmitters will be more than adequate as long as you have enough channels to grow. I started with a 6 channel radio because you only NEEDED 4 channels (Aileron, Elevator, Throttle & Rudder) and if you were really advanced, you used channel 5 for Landing Gear.
Then I found out about mixing and separate elevators and multiple motors.
Get all the channels you can afford in your radio and ensure that the radio/receiver combination can grow with you.
My original radio could handle 10 channels and 10 channel receivers were easy to get.
Then I needed a couple of more but didn't want to toss out all the earlier receivers. So I got a multi-protocol radio.
So stick with one that supports the most channels & receivers with large numbers of channels.
My 2 cents.