Overall, a pretty bad week. It is themed almost entirely around Trykovenator and doesn't have much to offer aside from that.

Common: Ankylosaurus Gen 2, Velociraptor, Stegosaurus, Apatosaurus
There isn't really a wrong choice here. Ankylosaurus Gen 2 is useful for the upcoming Alankyloceratops apex, Velociraptor is useful for the possible Indoraptor apex, Stegosaurus for the upcoming apex Cerastegotops, and Apatosaurus is a good pick if you're working on Plateorex.

Epic: Tyrannosaurus Rex, Diplodocus, Concavenator, Antarctopelta
Once again, the choice here depends on what creature you're going for. Tyrannosaurus Rex for Trykovenator, Diplodocus for Skoonametrodon, Concavenator for Concatoloch and Trykovenator (as well as the upcoming apex Glyptosavis), and Antarctopelta for Trykovenator (as well as the upcoming apex Glyptosavis).

Rare: Nodosaurus, Tyrannosaurus Gen 2, Echo, Carnotaurus
I would dart either Nodosaurus or Tyrannosaurus Gen 2, as both are needed for Plateorex. Echo and Carnotaurus can be fused into Indotaurus but I would not recommend choosing them.

Omega: Stegouros, Rativates, Geosternbergia
Rativates is definitely the strongest of these omegas, Geosternbergia being second and Stegouros by far the weakest.

Legendary: Koolabourgiana, Diplovenator, Smilocephalus
Diplovenator is the best choice in my opinion, since it's used in Trykovenator and the upcoming apex Glyptosavis. Koolabourgiana is needed for Skoonametrodon, however Trykovenator is much more worth it.

Unique: Antarctovenator, Indotaurus, Trykosaurus
The choice is between Antarctovenator and Trykosaurus, in my opinion. Both are needed for Trykovenator. However, I would choose Antarctovenator since Concavenator DNA is already in high demand for Concatoloch.

NOTE: This game is all about playing at your own pace, and there is really no wrong answer for what creatures you dart. These are my choices if your goal is to follow the meta and progress in the arena.