Here is MY OPINION of what uniques need a buff in the next patch, which need a nerf and which I think are balanced.
This is my opinion, which means it is ok to disagree with.
Balanced (Need no Change): Diorajasaur, Erlidominus, Grypolyth, Indoraptor, Magnapyritor, Trykosaurus.
Decent(Need a Slight Buff): Diloracheirus, Erlikospyx, Pterovexus, Smilonemys, Stygidaryx, Tenontorex, Testacornibus, Thoradolosaur, Utarinex.
Bad (Need a Big Buff or a Rework): Monolorhino, Spinoconstrictor, Tuoramoloch.
Too Good (Need a Small Nerf): Ardentismaxima, Mammolania.
OP (Needs a Big Nerf): Geminititan
Let me know what you think! I may do legendaries later if this gets popular.