Neat thread. I am growing out a handful of Pouteria myself.
Pouteria/Planchanella Australis is a very easy to grow tree here and grows quite rapidly. The pic below is from over 6 months ago and it is in a bigger pot now but could use a even bigger pot or go into the ground very soon. Did not even wince during winter and can handle up to mid 90s on the hottest part of summer in direct sun with no issue.
Pouteria Hypoglauca seems to be fine though that is recent addition to my collection. There is a fellow in my neck of the woods that got that one to fruit here so should be okay.
Pradosia Lactescens cv. Gigante. Think I had this one since December. Zero issues with the cold, no bad looking leaves or anything. Will see how it does when summer sun turns up the heat.
The only Pouteria that is not looking best is Green Sapote, it is kind of raggedy looking after winter and is just starting to bounce back. I have a small Mamey seedling that I left outside unprotected like a month ago and has some small discolored blotches on leaves I believe from chilly weather.