Unfortunatley, your top two are also my top two, so I can't help you there.

I'd pick Kaya, but I'm more interested in the historical characters anyway (and her collection is so small that you could scoop it up quickly and get to someone else).

But AGT26 is certianly one of the prettiest, if not THE prettiest, and if you have even a slight inclination to collect for the AGTs then go for it. I see that you only have one, maybe you'd want to do another?