Best last in slot for me?

I have no interest in changing my team

Rexy
ankylomoloch
diorajasaur
indotaurus
Mortem Rex
tarbognathus
giganyx

Last slot should be who?
Ankylodactylus
dreadactylus
lystrosuchus
albertospinos

I’m leaning more towards dreadactylus as I believe its the most damaging of the flocks and I like having something that can swap into a cloak 1 shot. Albertospinos I also like as the option but feel I have to many munchers as is and its not bringing much help to the team because of that. So which of the four would be best for this team?