There 60% of the jurassic dinos are Herbivores and Carnivores, with only 30% being Amphibians and Pteros. This ratio seems to be reflected in the types of dinos you face in tournament battles (haven’t done a proper data based analysis but just based on what I’m seeing this seems to be true). Given this, I’ve decided that its better to have Carnivores and Amphibians so I’ve been focusing DNA and VIP trades on getting more of those.
I also noticed that a common strategy that seems to work well is to start your line up with a dino that has lots of health and follow up with a dino that defeats the opposite of that dino, then follow that up with a strong glass cannon for the finish. That way, you can charge up points and use them effectively once your first dino is defeated with the second and third.
This would mean that the most effective layouts would be
Carnivore with high health, ptero, amphibian with high attack,
Amphibian with high health, herbivore, carnivore with high attack.
Would it be a fair assumption to suggest that an effective use of DNA is to stock up on Carnivores and amphibians at at 2:1 ratio of pteros and herbivores and to try to get half of those carnivores and amphibians with outstanding high health like Tanycolagreus and Cretasaurus or Nundagosaurus and Mastodonsaurus and the other half with highish attack like Prestosuchus and Concavenator or Acanthostega and Lythronax?