I get why you would say Death Note's ending was bad, I know many people who would agree with you. Yeah it was pretty lame that it was N who got Kira, and that he was fooled by the ol' switch-a-roo, but imo Kira's reaction to getting caught was just too epic for me to consider the ending bad, especially in the case of the original Japanese audio. Seriously god bless Mamoru Miyano.
On your opinion on FMA however... No offense but I think it's completely ridiculous. First off what do you mean by "blanket storytelling"? Also I know plenty of males who love FMA, more males than females actually, though there does seem to be a good balance. I don't get that view-point, only Alphonse seems a bit effeminate in his personality, is it because they aren't like the stereotypical Goku archetype characters? I would even claim that Edward Elric has more depth and nuance than any other character in the shounen demographic with only Kenshin Himura being able to compete.