What fish to use in fish tacos?

Mahi is always a winner. Tilapia is served n messican joints everywhere, but people on here will throw stones at it.

I usually use grilled salmon and occasionally tuna. But Mahi is good too.

Seared tuna, but only because I have an assload right now.

For reference:

Speckled trout ftmfw!

I just get whatever's fresh at the store. This usually ends up being tilapia or farm-raised catfish. I'm putting it into tacos with other flavors, not necessarily going after highlighting the flavor of the fish itself. This is going to be a healthy and delicious Ash Wednesday meal for us...