Personal preferance mostly. they have differnt sounds some play higher notes some are more bassy but all brands named are good speakers. However I do not recomend using factory stereo to push any of these speakers most factory stereos have insufficnt wattage. if you really want to make it sound nice use a aftermarket stereo you can get a nice one for about 140 bucks that plays all kinds of disks and has ipod connections this will make a huge differance in sound quality.
hope this helps
hope this helps
