Another plus to Bachmann DCC is there is quite a lot of stuff to improve over the base unit. I was surprized. You can add power and quite a lot more and a little at a time. I am seriously considering it.
Most DCC units are like that now. Digitrax, the unit I use, has had their heads together for years. I can actually program 9999 different units. That includes engines, consists, MU's, motor drives for the turntable and transfer table, and tortoise drives for the switches.
Big difference is in the programming and, of course, the price. Digitrax offers more potential and flexibility, but you have to pay for it. The old club I used to belong to used Prodigy. I looked at them. Good price just too limited in options, good beginner unit.
I want to go either radio control or infra red. I think that radio has a slight edge at the moment. Bad deal is that police car radios and the like can interfere with the system. Infra red is line of sight. Like a TV remote. Both have advantages and disadvantages. Not worried about changing right now, just a future possibility. We'll run tethered for now.