Wallet of Satoshi is winning because it's such a simple wallet. The majority people just want to send and receive Bitcoin. No one wants to open channels and all that nonsense, especially on a mobile device.

I tired Zeus but it seems to have much more advanced settings which I really have no need for or care about.

I tired Phoenix wallet too and same issue. A bit complicated.

I hope in the future we can use BTCPay server as our own wallet as I heard they will be creating an app.

I'm sticking to wallet of satoshi, it's an amazing app but of course I only keep small amounts on it and I use it for zaps.