I have had both the RS (2009) and now an RT (2012) and rode them in all kinds of conditions and road types. I have not tried an ST yet. My interpretation of both is pretty much in agreement with what has already been written. What I want to throw out here is that if the only reason to buy a new 2013 model is the front end ride you can get pretty close with Elka shocks and Baja Ron's new sway bar. Both together most likely would cost around $1,000 installed. You could also backfit the new 15" wheels and fenders if you wanted to. A 2012 RT right now is about $3,000 to $5,000 less due to sales deals. The 2012 RT is also pretty sorted out now, available, and has lots of accessories and spare parts in stock. The 500 pound Elephant in the room that no one is talking about is that the 2013's are a new production and may have new production bugs and issues to work out, sort of like the 2010 introduction of the brand new RT. The choice is not an easy once but I envy you having that choice as it is a lot of fun planning and thinking about getting a new bike. Have fun, be safe and ride ride ride.