I didn't even THINK to consider it this way, which is silly since I've seen so much advice in my research to look and plan ahead. Thank you!
Given this piece of advice, looks like I'm going with a male pastel/female spider.
Are you buying hatchlings or full grown breeders?
I answered under the assumption you were buying full grown breeders and looking to breed this year. If you're buying hatchlings and growing them out that's a different story.