Let's get straight to the point. Kentrosaurus is going to be a cut above. It's piercing gaze alone will be enough to send even the largest carnivores running. It will slash the competition. Tribes would be foolish not to stick this in their arsenal. It may be a hard tame, but I'll take a stab at it. Did I mention that it's pointy?
Awesome way of protecting your Brontos from Gigas in large scale raids. Make sure you have set to a low follow distance and it will cause the Giga to enrage if it attacks the Bronto, throwing the rider off and hopefully leaving the Giga to be at your mercy once it stops enraging.
Spiked walls that can be sneaken into enemy grounds... Did I say that they can't be destroyed with one charge of explosive as well? Oh, what about 42 base damage with secondary attack? Pack bonus defense anyone?
You know a creature is strong when just 8 of them can handle a wild giga even without being riden, having a saddle or even needing a Yuty buff. Useful even on PvE.
These guys are the baine of most bosses due to their damage recoil. Breed a bunch of these and use for home defense or even boss fights. However, their low torpor makes them an unwise choice for the Broodmother. Don't repeat my mistake!