Have you tried D4 dark dreams dont lie? It seems to be a fun exclusive so far on xbox one. Right now Ps4 doesn't have exclusive that get people to buy it. Drive Club is a bust so far. I don't think I will ever buy an Xbox one. I love my ps4 and I have a gaming PC so there is no point for me to buy an xbox one but I sure would love to try out sunset and D4. I think the days of "exclusive" will be gone soon. All you will get are exlusive content only. There's too much money for developers to only stay with one platform. It is so hard for me to think of more than two companies that are exclusive for Microsoft or Sony right now. I still think the best exclusive platform money can buy is Nintendo.
While your right about its too much money for developers not to make the jump to both platforms do not forget Sony and Microsoft can not only purchase game studios but they already have their own. So there will be exclusives always and Sony and Microsoft will fight for each one because software moves systems just as much as the hardware does.