I went and listened to some RF7iii's at Nebraska Furniture last weekend. I noted very dynamic sounds in the action scene I chose there from their disk which was a Jurasic Park cut. One thing interesting was the voices did not sound good to me. I think it's possible that they just weren't EQ'd right but I wasn't impressed with that aspect.
Listeded to some Revel F36's and they were very similar to my Infinity setup which makes sense as they are a similar speaker made by the same company. Those are a big less dynamic with very accurate sounding voices. And the dynamics are still good for me with the subs I have.
Overall, I would replace my 590s upstairs perhaps if I fell upon some RF7 iii's for cheap used but I wouldn't buy them myself for that room. If I was going to replace the 590s, I'd likely just go all out and buy JTRs and be done with it. Otherwise, for the amount of time i use that room, the 590s are perfect for now.
I actually went to listen to that to that exact scene in all 3 of my setups and what I find is that each have something that sounds better and some of it is probably driven by the level of perfection or lack there of in how the room has bene dialed in with the system. But all things being equal, I think it sounded best with the Infinity setup (vs. 590s vs. Polk RtiA7's)
But here's the good news. Nobody would lose if they had RF7's or any setup listed in this write up. And definately with Dan's RBH's