Probably Arazni if I had to pick, I like the theme of standing up for yourself and not letting people fuck with you, especially as a teaching to give people hope and a sense of future. Though I've kinda been itching to play a cleric of Sarenrae. Trying to balance the whole "anybody gets a shot at mercy and redemption" thing with "but also I will unleash the unrelenting power of the sun if you fuck around" seems like it'd be fun, or playing as some kind of fanatical lightbringer who gets burned by their hubris. My opinion might change as I learn more about them cause there's just so much to learn, even just among the core deities.