If anyone needs to waste a decent portion of their lives I reccommend watching Legend of Galactic Heroes. It is a 100+ episode (plus several specials) space opera anime that is superb. Once you invest time into the characters (can be a bit overwhelming with the numbers/names at first) it is definately worth it. Cant say more because spoilers!
Berserk is also a guilty pleasure. I can go back and watch it all the time. If you only have 5 minutes, check out Guts vs 100.
Feng Shen Ji is a decent manga (ongoing). The first chapters really set the tone, although I feel some characters just dont get the time they deserve.
Psyren is one of those managas I picked up and cannot understand why it ended and still doesen't have an anime adaptation. It did lose its way a bit, but it was an interesting story and well worth aread.