Full Metal Panic: Best of Sousuke

I highly recommend the manga. There's the first bit, just called Full Metal Panic!, and then there's the second (which I find much better due to it's brutality) called Full Metal Panic! Sigma. The anime is great too. The order goes as such: Full Metal Panic!, Full Metal Panic! Fumoffu, then Full Metal Panic! the Second Raid. But there's a catch; The first two seasons are great. But with the Second Raid, the anime drops abruptly and they stop making it at a cliff hanger. So if you want to avoid feeling lost and hopeless, READ THE MANGA!!!