Hmm, I have always liked rolling.
My approach would be a random system for single player only. Even if you go in it with all 18s. If you like it, go ahead. Or in case of a distribution system get an additional die (w4/w6) to distribute while creating.
Again, only for single player. There is a certain need for balance in multiplayer.
So if you decide to use an altenate creation, lock that char for online multiplyayer.
