Arrggghhhhhhhhh SO hard to decide! Honestly though, I'm looking at those two Vortex scopes pretty hard now - 4-12x40ao and 4-12x50ao. I figure the best thing to do is buy the one that has the most for my money, even if I'm not gonna use it all immediately.
If you had to choose between those two, what would you do? Seems that the bigger objective makes more sense, but also, money. Not a huge difference, about $30, but I could spend that on new rings and be set I think