We have stayed at both POFQ and CSR. I prefer POFQ. It is moch less spread out, more intimate. It absolutely IS romantic- lots of tucked-away courtyards, and the stroll along the river. The boat to DTD was great. There are also carriage rides available in the evenings... very nice! I will admit, the pool at CSR is nicer for adults- more adult oriented. The pool at POFQ is nice, but more fun than romantic.
CSR is very pretty, and the lake is nice- but it just didn't seem as romantic as POFQ to us. Everything was so spread out and took a long time to get to. The food court was always crowded. The bus stopped at all (four? five?) stops before heading to the parks- that added a lot of time to the commute. CSR just didn't have that "certain something" that makes Disney resorts so special. It seemed like any generic resort in FL, AZ, or NM.
Overall, I would recommend POFQ over CSR.