If you haven't already, you should take your boots in and see how your boots fit in each binding. Test out the toe strap on the unions. Also, the 2012 cartel only comes in re:flex, so that might be something you would like to try. They are both mid-flex do it all bindings. If I were you I would prob. buy the cartels cause I haven't tried re:flex bindings yet. But its hard to go wrong here IMO, my forces have been great bindings, as were my 09 cartels.
This-ing for the second time. You're at a point where both would serve you well so its all about fit at this point. Pay attention to the union toe strap, seems to be a deal breaker for some.