For shits and giggles, I used the same roller to make 50 sets of scores using 3d6. The averages and means for those sets ended up as:
14,42 (14) 12,82 (13) 11,66 (12) 10,36 (10) 8,76 (9) 6,82 (7)
On average, this seems like it'd make for a playable character in 5e, though it definitely...