I think I found the best candidate yet as to what my plant might be, and I'm actually happy with it. I think it might be Dwarf Brazilian. I found these photos on We Be Bananas of Dwarf Brazilian, and they look a lot like my plant.
This especially looks like my second plant, the one that isn't doing so well but is recovering.
The petioles on this plant look a lot like mine. They are open, waxy, and have red edges.
Tell me what you think! Appreciated!