Regarding MSRP, the Toyota Corolla costs considerably more than the Yaris.
Neither the Toyota Corolla nor the Toyota Yaris has a marked advantage with respect to seating capacity.
While the front cabin in the Toyota Corolla offers a bit more head room than the Toyota Yaris, there really isn't much of a difference. While the rear of the Toyota Corolla offers a bit more head- and leg-room than the Yaris, there really isn't much of a difference.
The Corolla is a little more ponderous than the Toyota Yaris. Your wallet will hurt more every time you fill up the Toyota Corolla than the Toyota Yaris because of its larger tank. The Toyota Yaris and the Toyota Corolla compete for the same parking spaces.
Both the Toyota Corolla and the Toyota Yaris are likely to feel slightly slow because of their high horsepower-to-weight ratio.
The Toyota Corolla has considerably bigger tires than the Yaris. Remember that wider tires could look and feel better, while smaller tires can improve gas mileage. With its tighter turning circle, the Toyota Yaris is very likely more agile than the Toyota Corolla, something to consider if you do a lot of city driving; on the other hand, remember that a vehicle with a tight turning circle may feel a bit twitchy on the highway.
The Toyota Corolla has a more sizeable engine than the Toyota Yaris. Remember that smaller engines typically get better gas mileage, but smaller engines can be stressed more. Torque equals pickup, and the Toyota Corolla will have picked up and gone by the time the Toyota Yaris finally gets moving.
The Toyota Yaris and the Corolla have the same basic after-sale protection.