I haven't had Tommy's in almost 10 yrs! I don't think there's one in Orange County, but there's a Tommy's by my parents' house in L.A. County.
I like In-N-Out too and it's just 5 min. away from me, but I only eat there once or twice a year.
My boyfriend and I like Carl's Jr. We like all their burgers. We also love it when we get coupons from Carl's Jr. Sometimes we'll get several burgers some fries and a drink for just a few bucks. My boyfriend's favorite is the guacamole six dollar burger, and my favorite is the teriyaki burger with pineapple.