Amethyst has been my favorite so far, but I'm also using Current (which is buggy as heck) for the lightning wallet and testing it out along with Iris. I dislike that Alby is a browser extension, I can't really find a less broken way to set up a lightning wallet on Android than Current.

On the other hand, Lightning integration isn't very important to me. I prefer dogecoin, just want to see how everything on nostr works 🤙