Thanks to everyone for the very helpful comments. The pictures and videos have been great. We are limited to 10 day cruises so our only Rhine option is the Rhine Getaway. From a value perspective (meaning the one that would be the most expensive), Douro easily wins. We are leaning towards Douro simply for the immersive uniqueness. When I watched the Rhine videos, it seemed a bit “been there done that” after the Danube and visiting other parts of Germany (villages and towns with cathedrals, etc.) with the exception of the Black Forest so it was helpful to hear people have not enjoyed that excursion. It did seem like the Douro reviews mention as negatives the bus rides and being moored to other ships at night smelling their exhaust. Is either of those factors really that bad?