I do not disagree that each believer has equl stance as priest before God through faith in Christ. We also have equal opportunity to advance for our predetermined rewards, but some are the hands, and some are the feet, we do not all have the same gifts.
Paul himself, was greatly mistaken on his gifts. He though he was the apostle to the Jews and sought on every occasion to travel there. God however had him slated to be the apostle to the Gentiles, and even when Paul attempted to travel elsewhere, God redirected his path, even if by shipwreck and imprisonment to take him to witness in the heart of the Gentile empires. Our spiritual gifts might not be known to us or even experienced by us, but they nevertheless exist for believers according to His plan.
I fail to see why in God's eyes a woman would be any less deserving of God's gifts.