I have my theories on Dante, but if you want a real expert, hit up melarayuhi. She's been playing her somewhere close to two and a half years now, and if you leave her a comment and let her know how to contact her, she'll gladly exchange takes (and probably meta at you for years in the process ~_^)

As for strongest memories, I would third "the first time she switched bodies," as well as second "the birth of her "son"". I'd also add his death in the first place.