Right on Joe. DCS is a great system for sure. Some of the MTH sound packages are amazing, especially steam. 
The ESU CabControl ICU and MCII can also be updated online or with downloads, same as the Loskound decoders. But the problem with the early MCII was hardware - processor and memory - unfortunately.
I dabbled with battery power and wireless DCC but converted the motor to coreless so I could use smaller batteries and an HO-rated decoder, rather than beef up the decoder and batteries to power a Pittman can motor.
Seemed like a good idea at the time, and it all fit in an MP15AC (just). But I outsmarted myself because I couldn't get a good wireless signal in a brass loco shell, and the power converter for the smaller batteries only provided 11V to the decoder, which wasn't a good match for my exisiting DCC 15.5V track power. 
TEXASSP: From what I've seen the Railpro system seems a long way ahead on the control side with wireless loco-to-loco communications, but their sound files are limited so far.
If we could only combine the best 2-3 features of each system in one package we'd rule the world! 
