it all depends what you want to do.
i owned a vl commodore. long story engineblew up, 5 piston ring lands cracked, and shittered piston number 8.
commodores are good for going bush.(stock)
skylines aint.
skylines are good for going around corners (stock)
comodores aint (stock)
it all depends what you have done to your car.
generally i think skylines are better for MY NEEDS.