Funny you should ask...I am currently running the BFG Sport Comp 2's on the rear. I am trying to get the last little bit of good out of my Conti's up front before putting my other two Sport Comp's on.
Previously, I ran the Continental Extreme Contact DW tires all around. And I loved them. I would have probably replaced them with the same setup, but I actually won the BFG Sport Comp 2's at an autocross school sponsored by BFG during Mustang Week last year. My only complaint with the Continentals would be wear life. They didn't last that long, maybe a year and a half, and under 20K miles.
I put the rear BFGs on a couple of months ago, and will be putting the fronts on very soon. I haven't done a lot of spirited driving since putting on the Comp 2's, but a buddy of mine has run both the Conti's and the BFGs, and he actually prefers ths BFGs. Plus, from what I have seen, the price of the BFGs is very reasonable compared to comparable tires from other manufacturers.
I could defintely see a BMR red Watts link under my car...