I did this on my first playthroughs of 6 and 7, with a friend. For some reason I never did it for 4. And always came up with random names for FF1 since the space limit is a little to restricting to name after people. For the record I was Sabin and Red XIII. And for some reason I think I felt bonded to Sabin in that regard, and he remains my favorite character still. But I quit renaming characters after my first playthrough of 7