06-10-10: Tvad
Fatburger's better meat and bun (and to me...fries), is what makes it preferable.
I like that they heavily season their meat with pepper, etc - gives it a nice "pop" compared to others.
06-05-10: Bongofury
3X Animal style will slay fatburger.
Not sure I can agree with that. The problem for In & Out is that their patties are not only paper-thin, they are incredibly bland. Adding more patties gives you more meat, but it's still pretty bland, hence the need for "animal sauce".
Now, if you really want a shootout, take a $9 Fatburger XXXL Triple King(24oz of patties)or $13 XXXXL(32oz) and compare it to a 3X Animal Style. Pay close attention to the taste and texture of the meat. Simply no comparison.
Of course, I'd probably take the Tommy's double or triple-cheese burger over both Fatburger and In & out 7 out of 10 times.