I too am just getting back into the hobby after a 15 year hiatus... I decided to stick with a brand that I know was good and still appears to be good. After reading a bunch of reviews I decided to go with a Futaba 6EX 2.4ghz. It appears that this is the way that the hobby is moving, so why not future proof?

The only downside that I've seen is the possibility of some composite materials not working too well with the 2.4ghz receivers according to a thread just a little below.