[Jubala]

I don't think that just because you're big, bad and succesful nobody would want to fight you. On the contrary. Some people derive great pleasure from besting a bigger better opponent so I no reason why some aliens wouldn't be like that too. Some AI's wouldn't want to fight you because your big and succesful, but others would purposefully pick a fight with just because you're big and succesful. Makes more sense to me. But prestige points in general is a good idea.