If we're talking about point buy, I do Pathfinder 25 point buy for my campaigns. Random rolling makes it harder to plan on what your character is going to be if it's done 'old school' and all of the other variations just seem like unnecessary complication on what point buy offers - if I see one more 'roll 5d6, drop two lowest, but on a thursday, if the moon is full, spin counterclockwise three times and roll 4d6 drop one, but if Mercury is in retrograde-' that just doesn't want to admit they're overcomplicating character creation, I'm going to scream.