i went through the same decision between graphite and blue jean!
as far as one being more neutral to really 'go' with anything, i'd have to say the graphite. i think they are equally beautiful, but i decided to go with the blue jean because 1. i wanted a blue bag anyway 2. i mostly wear neutral (black/gray) clothing so the blue jean will really pop, even though the sequins are going to pop anyway! 3. i already have silver/gray bags
but just like blue jeans, i think the blue is really a go with anything color. think about what clothing you will wear it with i think will help your decision