I think that the manga does have its own set pros and cons, as does the anime. The one thing I think the manga does better than the anime is Saki's and Satoru's relationship. They actually showed how Satoru feels about her while in the anime they just end up together at the end, cuz why not? That leads into another thing I think they did better in the anime and that was show other character's perspectives besides just Saki's. They make Maria look like a terrible person in the beginning but over time you generally grow to like her because you see the world from her perspective. They also show more of Reiko who nobody seemed to care about at all in the anime. I mean yeah they forgot about her, but Saki and Satoru managed to remember everyone else they knew who died. A major downfall for me though was the fact that Shun, Maria, and Mamoru's deaths seemed way less serious and they actually made fun of them later on. Other than that, they did explain the ecchi moments as something the characters do as a greeting rather than when they're just under stress like in the anime. Still, it will turn a lot of people off even though the anime did that too with just a couple homosexual scenes. Bottom line, if you are homophobic, don't watch or read either of them.

I think that the manga does have its own set pros and cons, as does the anime. 

The one thing I think the manga does better than the anime is Saki's and Satoru's relationship. They actually showed how Satoru feels about her while in the anime they just

end up together at the end.

That leads into another thing I think they did better in the anime and that was showing other character's perspectives besides just Saki's. They make Maria look like a terrible person in the beginning, but over time you generally grow to like her because you see the world from her perspective. They also show more of Reiko who nobody seemed to care about at all in the anime. I mean yeah they forgot about her, but Saki and Satoru managed to remember everyone else they knew who died. A major downfall for me though was the fact that

Shun, Maria, and Mamoru's deaths

seemed way less serious and they actually made fun of them later on. 

Other than that, they did explain the ecchi moments as something the characters do as a greeting rather than when they're just under stress like in the anime. Still, it will turn a lot of people off even though the anime did that too with just a couple of homosexual scenes. 

Bottom line, if you are homophobic, don't watch or read either of them.