Should i get an xbox 360 or ps3?

me and my sister want to buy something to play games on, i had a ps2 but it broke. i also have 3 friends who have xbox's and they want me to get one. how reliable is the xbox, i heard about the "red ring of death" and i don't want to deal with something that breaks down all the time. i like call of duty and homefront my sis likes fighting games like marvel vs capcom which is better for those games ????????