GURPS Random Stats. Roll 12d6.

Step 1: Roll 12d6.
Step 2: Assign the 12 d6s to the 12 Attributes and Secondary Characteristics.

Attributes (4):
ST, DX, IQ, HT
1, 8
2-3, 9
4-5, 10
6, 11.

Secondary Characteristics (8):
Hit Points, Lifting Strength, Striking Strength, Speed, Move, Per, Will, Fatigue Points,
1, -1 to a Secondary Characteristic or -0.25 for Speed.
2-3, -0
4-5, +1 to a Secondary Characteristic  or 0.25 for Speed
6, +2 to a Secondary Characteristic  or 0.5 for Speed

With the Stats Rolled
 1s x3, 2s x1, 3s x1, 4s x4, 5s x1, 6s x2

Fighter.
ST 11(6), DX 10(5), IQ10 (4), HT10 (4)
HP10 (1), LSST12(4), SST13 (6), SPD 5.0 (2), Move 5(3), Per9 (1), Will9 (1), FP11 (4)

Rogue.
ST 10(4), DX 11(6), IQ11 (6), HT10 (4)
HP9 (1), LSST9(1), SST9 (1), SPD 5.5 (4), Move 5, Per12 (4), Will10 (2), FP10 (3)

Notes:
1) Trying to keep the Motions Simple. Grabbing a fist full of 12 d6s and rolling them and sorting them.
2) Aware that with the 8-11 stat range Players will try to use up all their 4 and ups for Attributes.
3) Aware that they will use their 1s on the other "dump stats".