I started out with the 82s and recently upgrade to the RF-7s and couldn't be happier. They do sound better in every aspect I'm my opinion. You can always EQ the bass out of the big 10" woofers if need be. I was on the other side of the coin and EQ more bass into them. The RF-7s fill the room with a ton of clear sound compared to the 82s. Don't get me wrong i still love the 82s and use them as side surrounds which work awesome. As mentioned above, you always be left wondering if you go with 82s.
RC-64 Center, RF-7 Fronts, RF-82 Sides, RW-12D, QTY=2, RSW-15, RS-52ii Rears, Pioneer SC-1522-K, Panasonic 65VT60, 65"