Not FFX but close - the new Manassas, VA store off of Balls Ford serves pretty good BK. Haven't had a lousy one there yet. Also from what I heard, the Burger King in Woodbridge by Potomac Mills (not inside, rather abutting Smoketown Road) gets praise from folks regarding BK in the entire D.C. area. I always see a good drive-thru line there.
Forum: Fairfax County General