https://www.rcgroups.com/forums/showthread.php?2878376-Spektrum-DX6e-vs-DX6-G3

This may help, don't mind the haters, any 6 channel radio will be fine but its always better to spend a little more because you may need the features later. I was flying a dx6i, then went to a Dx7s, this was fine until I went to gas warbirds and now I have a dx9 black. Its always better to chose a radio that u can grow in if you can afford it.