I use pH7CMS Pro for now several months and I have to say it's the only one that really fits my needs. If you disable the features/modules you don't need for your dating service you get exactly what you really need. The banner module is also very good and get nice ad commission thanks it.
Before I tried Skadate,Chameleon and Dolphin7 but they were not good for what I wanted to build and especially for a "normal" and simple dating web app. I can recommended it