I have a Fuerte that seems to be doing well. It's actually one of the only two varieties Lowe's sells here, the other being Mexicola (and grande). Both handled this past winter like a champ, although it was definitely warmer than normal here. Both trees are in a shaded area with a slightly more humid microclimate, so they're spared the majority of our blistering sun.
I tried Hass and it wasn't as cold tolerant, and also seemed more sensitive to root rot and soil salt. Wouldn't mind giving it another go having learned some things since then.
Appreciate the tips on Rootmaker and copper hydroxide paints, I'll check them out!