Carbons have come along way since there introduction by easton in 1983.Today they are much more durable,straighter,with much better tolerances.Carbon arrows are lighter by nature making a much faster setup,which is probably the #1 factor in sales.
Easton has the ACC which has the straightness of alluminum and the fast flying,light weight of carbon.That being said,its probably the best selling "arrow" for target and hunters alike.
Its all a matter of preference.
There are so many sizes of alluminum on the market there will be one to suit your needs.