Official comment
Personally, I'd go with the XDJ-RX2 because of the pads, but that's just me. The modular components of an XDJ / DJM allow for better upgradability should you decide to go to a higher-model CDJ or XDJ later, but if you're moving towards the XDJ-RX2, that's more towards a computer / DDJ-based setup anyhow.