Heheh... well, there have been lots of posts from folks on this subject, on both the QCubed website as well as the Qcodo website. Just do a search for QCubed on this website or do a search on Qcodo on the Qcubed website if you want to read other folks' opinions...
But the long and the short of it is the two frameworks (IMHO) both make great choices and I think you can feel confident that either way you'll be able to reap great benefits from using them.
While more recent iterations have brought about some divergence between both frameworks, the underlying core that has made Qcodo such a strong framework (a consistent OO approach, the template-based code generator ORM, the QcodoQuery object querying language, QForm/QControl view-controller architecture, PHP server side-based AJAX coding, etc.) are very much the foundation of both frameworks, which is why I think you'll win either way -- the rest is just personal preference.