DC Steakhouse has become my favorite hangout since I moved to AZ, over a year ago. The steaks are wonderful, it's small and intimate but can accommodate large groups (make reservations though!) they are very popular. While they are on the pricier side, their weekday happy hour till 6pm with $5 martinis and excellent appetizers (also half price) has me going back more often than I care to admit.
Their staff is very friendly and go there often enough, they call you by name :-)