Easy for me, as I own very few modern style

Red Ninja
Neo-Viper (Roc)
Elite Viper
Stalker (25th)
Snake-Eyes (all black 1982 style)
Lady Jaye (Weather Dominator)
Cobra Commander (25th Hooded first release)
Baroness (ROC)
Croc Master (Never opened this one...but)
Snake-Eyes (RoC)

I'd put Cobra trooper on there, but even with the corrected hips that allow more movement, I still hate their hands.