Handling
With their comparable turning circles, the Chevrolet TrailBlazer and the Mazda CX-9 likely handle almost the same into and out of tight spots.
Drivetrain
The Mazda CX-9's engine is a bit smaller than the Chevrolet's, but not terribly so.
Utility
Drivers with frequent child-duty might favor the Mazda CX-9 over the TrailBlazer.
The Chevrolet TrailBlazer outpulls the Mazda CX-9 by a big margin.
Convenience
You'll definitely take the Mazda for a fill-up roughly as often as the Chevrolet TrailBlazer.
Comfort
While the front cabin in the Chevrolet TrailBlazer offers a bit more head room than the Mazda CX-9, there frankly isn't much of a difference.
The ampler interior dimensions of the Mazda CX-9 make it significantly roomier for your passengers than the Chevrolet TrailBlazer.
Dimensions
The CX-9's tank is almost the same size as the Chevrolet TrailBlazer's, though the Chevrolet TrailBlazer's is a tad larger.
The TrailBlazer and the Mazda CX-9 compete for the same parking spaces.
Cost
The destination charge is a standard charge for transporting the vehicle from its point of origin to the dealer. It costs almost the same to get the Chevrolet TrailBlazer to the dealership as the Mazda CX-9.
The Mazda CX-9 won't save you much money at the pump compared to the Chevrolet TrailBlazer.
The Chevrolet won't tax your gas budget substantially more than the CX-9 will.
The Chevrolet TrailBlazer isn't much pricier than the Mazda in terms of MSRP.
Warranty
The Mazda CX-9 and the Chevrolet TrailBlazer have the same basic after-sale protection.