Please no. For pnp dnd it can work but also has the chance to have MASSIVE power differences between players. We had a campaign where 1 player had 3 18's and where some players dident have stats higher then (IIRC) 14. The powergap was massive.
Id prefer not having to spend 'reroll' for 15 minutes straight again like bg1 and bg2 char creation because I want to have at least semi decent stats xD point buy doesent give spectacular stats but its fair, its fast and the NPC's seem to have been rolled in the same manner.