In keeping with my retired state of life and position as a NATO ghost, I'm only going to list the ones I rate on the positive side.
MHA - 7 - Can't argue with their success
FARK - 9 - Greenlighter, will always have my heart
WTF - 9 - My brief time with them was wonderful and they don't get involved
RoK - 8 - Strong and sensible
GOD - 8 - Xiphosis. The world wouldn't be the same without him.
TFD - 9 - Best friends, cuddle mates
NATO - 7 - Very tight knit and long history, will weather any storm (sorry, not going away), but could use a shot of adrenaline
Umbrella - 8 - Have to respect them. It is required by all NATOans.
NPO - 7 - Still going, still fighting
Everyone else I'm kind of neutral towards, with no strong feelings either way, except of course the old timey grudges...