Hello Brain you beat me to it,
Like Brian stated, the AP suits are not bluish anymore but gloss pure white ABS plastic, this only happened a few years ago with a small batch of plastic which had a blue hue to it, what happened is AP was stuck getting the plastic from a different supplier because the original supplier went bankrupt and was stuck finishing some orders with plastic from a new supplier which had a blue hue to it,
Either armor is a good choice, the main difference being that TM is a very nice fan sculpt ANH replica,
and AP armor/helmet originates from a real screen used movie armor and helmet. Not sure if TM uses ABS but AP are made of .80 gauge ABS so it's very durable for trooping.
Mark