The problem is, I like them all for different reasons. There aren’t really any functions across all of them outside of the expected send, receive, zap, etc.
I like primal, mainly because of the relay functions, in regards to using your own cage relay if you so desire or using theirs and only exposing your IP address to it rather than every relay you visit. I use a VPN so it’s a moot issue for me, but I like that they are thinking about their users privacy a bit more than others.
I like Damus for one reason, they seam to be the only ios client that allows you to easily create a feed of nothing but your hashtags. This seems like an obvious feature so it’s frustrating that other clients don’t have this.
I like Nostrmo for its customization, I like being able to use my own photos for wallpaper for example. You can also customize your font along with many other things. These may be more niche features, but I still feel like more than one mobile client should it.
Freefrom, it’s simple and easy to use. I know this seems counter to what I just said, but if I was judging each client for my favorite feature of that client, it would be that. Nothing wrong with clean and simple either if that’s your thing.
NOS, I like it because it has a nice, overall theme, purple is my favorite color. It’s also lacking the zap button which is actually refreshing. Personally, it reminds me of the 80’s, in a New York subway and tossing some change into a guitar case because you appreciated the music. Value for value before it was a cool thing to say, hehe.
I am obviously in the minority, but I have always felt like your zap info should be kept on your profile page not on the bottom of every post for all to see.
TL;DR nostr:npub1yzvxlwp7wawed5vgefwfmugvumtp8c8t0etk3g8sky4n0ndvyxesnxrf8q , for its overall mobile capabilities, it renders long form beautifully, as well as a very friendly development team.