I've used Camino for a long time. It is fast. It uses Gecko to render, just like Firefox. It doesn't have a built-in RSS reader but instead it passes feeds off to more capable programs like
NetNewsWire or
NewsFire (there's a free version of the former). The developers have longed believed this is a better alternative to a dumbed-downed built-in reader like Safari has, and I'm inclined to agree. However, I'm pretty sure you need to use a nightly build to have access to this feature, which you can get
here. The nightly builds have other goodies too, like spell check.
There are a number of extensions available from
PimpMyCamino, including ad blocking.