I love my Ruby gel. After using the Terry Butterfly for a year, it must have softened up because I started having major "girly bits" pain. So, I got a Ruby gel.
It is a very firm saddle (don't let the 'gel' word fool you). I had MAJOR sit bone pain the first couple of rides, but it went away, and now I'm very happy. When transitioning to a firmer saddle, it does take a few rides to break in the saddle and your sit bones. So, don't give up right away if the only problem is sit bone pain.
That said, saddles are a very individual thing... Be patient, and you will find the right one.