Gorgosaurus libratus (pack of 3) vs. Tyrannosaurus rex

[dinosauria101]

Gorgosaurus libratus (pack of 3)

i53.photobucket.com/albums/g62/TigerQuoll/dinosaur/gorgosaurus-sw.jpg

Order: Theropoda
Family: Tyrannosauridae
Length: 8-9 meters
Mass: 2.5-3 tonnes
Diet: Other dinosaurs
Age and Location: 75 million years ago, Late Cretaceous period, Alberta, Canada
Killing apparatus: Crushing jaws, manual claws, pedal claws
Coexisted with another tyrannosaurid, Daspletosaurus, by means of niche and habitat differentiation. Has been considered a synonym of Albertosaurus by some.

Tyrannosaurus rex

i.pinimg.com/originals/85/49/fb/8549fb4c39cb16c8fba0ae7bd12c3f04.jpg

Order: Theropoda
Family: Tyrannosauridae
Length: ~10 to 12.3 meters
Mass: ~4 to ~8 tonnes
Diet: Large herbivorous dinosaurs
Age and Location: 65 million years ago, Late to end Cretaceous, Canada and United States
Killing apparatus: Crushing jaws, pedal claws, manual claws
One of the most famous dinosaurs of all, and also one of the largest meat eating dinosaurs from North America. Often depicted in popular culture.

[6f5e4d]

The Gorgosaurus pack wins this battle for certain, as their combined weight actually surpasses that of Tyrannosaurus.

[DonaldCengXiongAzuma]

Agree with you. However, the gogosaurus pack might lose at least one member and this will make them vulnerable to a neighbouring pack.

[dinosauria101]

I think I would probably lean towards in the 3 Gorgosaurus overall due to numbers and outweighing the Tyrannosaurus.

Having said that, I would favor Scotty or Sue just slightly (like 55/45) over 3 max sized Gorgosaurs - not as much of a size disparity and they can kill each quickly.
Here's a chart I made of Scotty and 3 of the holotype, credit to Randomdinos for the skeletals: