Very nice system. Looks like you put it together with thought. Also looks very nice.
Well, I can’t definitively say the Rotel would sound better. But I think it is very likely. I have a lot of experience with Rotel. The Rotel is purpose built with a better power supply and is absent the five disc changer contraption. This is likely to result in a higher sound quality. I like Rotel equipment for their cost range.
Also it is typically better to match components to the same manufacturer. They tend to perform a little better provided that the company was working towards high-quality sound with simplicity of design simplicity. I think it likely a great choice.