At least to me, it seems that a few of the saber-wielding humans in Star Wars are right-handed. I only assume this because Luke, Anakin and then Anakin as Vader get their right limbs cut off. Granted, I could be wrong, but you'd think that if that's their dominant hand, it would be "out there" more, with a higher chance of leaving it vunerable. Wouldn't you say?
Okay, so my point is this. If Anakin and Luke were in fact right-handed, most of their figures are wrong. The Saga Bespin Luke and the Tatooine Attack Anakin show this... Because if you look at how they hold a saber with two hands, their left hand(s) is/are always on the top of the saber (I tried having Luke's right hand be on top, but it wouldn't hold and the hand kept trying to pop out). But if you're right-handed, your right hand will be above your left. This gives you more control over what whatever you're using. I mean, try it. Try moving a toy lightsaber around with a reverse grip - it's kinda weird .
This is no big deal, and in fact, I could be wrong and Luke and his dad were both left-handed, anyway. I just noticed this one day playing with the Bespin Luke and looking at a Star Wars poster that showed the Bespin Duel (it's from the Sith poster...showing all the major duels so far).
It just seems to me that Hasbro really isn't paying attention to detail...even if this is a really, really, really small detail. Wake up, Hasbro! You really dropped the ball!