Personally, I think the point buy method is fine, but we discussed a standard spread for creatures. Not certain what the final result was, and it would be for the average power level, but stat bonuses of +6, +4, +2, +1 +0, +0, -1, -2, -4 , and -6 were proposed. Final rule is 15 pts at superior power level, so maybe +8, +6, +4, +2, +2, +0, -1, -2, -4? Any spread is going to be somewhat arbitrary though.