our serial looser

[Louis VI the Fat]

He must have redeeming features but I am at a loss to know what they are.

Yes, he does have redeeming features. And no, you're not at a loss as to what they are. In fact, you summed them up perfectly well:

Namely that he is arrogant, self interested, utterly without principle save that whatever France wants is right, would dine with Satan himself if he felt it was in France's interests, and is wholly incapable of considering that any other nation may be his equal let alone superior in any respect.