You missed one major brand... Spektrum!

Spektrum has the DX7 7-channel 2.4GHz DSS radio, and they are partnering with JR for radios with 9+ channels. Futaba is slowly announcing their 2.4GHz radios as well.

At this point, I say get whichever 2.4GHz radio you like best in your price range... 72MHz will not be in production much longer.

I was a Futaba guy until the Spektrum DX7 came out, now I'm going with Spektrum and possibly JR 2.4GHz DSS radios...