The gospel proclaims that it is the perfect righteousness of Christ in exchange for our unrighteousness (all as a gift) that is our only hope. Comparing ourselves to other christians, in attempts to see who is the greatest, seems futile, and frankly very sinful to me in the light of Christ's perfect righteousness.
I think the reason you think you are so great in comparison to other christians is because you are comparing yourself to what you consider lowly, carnal christians instead of comparing yourself to the perfect righteousness of Christ. That's a huge mistake I believe!