I don't grow any of these (except
C. imperiale), but they tickle my fancy...
Clavija sp. (This one is
C. domingensis).
Garcinia magnifoliaNow that's a giant banana, and they get even bigger! (
Musa ingens)
Chrysophyllum imperialeSome of the Coccoloba sp. also get giant leaves.
Then there's things more well known like breadfruit & papaya, as well as things with big leaves that are pinnate, like
Diploglottis australe