Apple MacBook Air Core2duo 13″ SSD vs. Macbook Pro Core2duo Boot Up

MacBook Air 13″ Core 2 duo 2,13 Ghz, 4GB RAM, 250GB SSD vs. Macbook Pro 15″ MacBook Pro 15″ Core2duo 2,8 Ghz, 4Gb Ram, 320GB HDD, OSX 10.6.6