The 33" would drain more power and cause more stress, but the difference is very minimal. Given the weights would likely be close on comparable tires, the 33" has a little added leverage stressing stock components, and the added height would reduce the effective gearing.
Like Jeffy mentioned, depends a lot on what tire you want to run and what sizes it's available in. One of the best performing tires I've seen is the 32"x10.5" TSL Radial. A true 32" tall and aggressive while remiaining well-mannered on the road.