Just like virtues, of course, they all fit a certain type of genre. They each are potent and each offers different utilities and approaches. The same as shapeshifters(part of the reason i play so many, each is different. EVEN if you get two same top-tier forms you have different variety of abilities in the lesser to utilize).

So i ask understanding that your two will likely not be my two. But I am curious. On the same idea, if you were a shapechanger what two foci would you pick for yourself?