I do not see the point hating anyone. It creates factions and alliances and gives people a chance to step in with some taboo topics.

Joe: Your mom s*cks.
Red: Obviously YOUR mom was better at it because you wouldnt ever be conceived without which.
Joe: ...
Joe: (!)
Fight breaks out and is broken up after one overpowers the other.
Joe: You're a sick person.

Its interesting always to read these topics though.
I'm an Athrun fan cause he's one of the main characters, albeit a small role) in GS and i believe he'll be again in GSD. I like underdogs because they're hard to build up and develope their role but always a shocker when their nearly insignificant role becomes just as important as the main characters. Besides, Shinn is just a Kira clone/cameo but we get to see them side by side and compare the immature version to the developed one. Eventually you'll see doubles. I dont like that. If the writer changes it a little bit near the end, it would be more satisfying ending, then if it were like the last where, just like Kira's plot, he see's his sister, appears half naked, and gave her a smack on the cheeks and everything is . It would be quite a shocker though if we'd all find out it was alright because they're only adopted children growing up together.

Shinn: Myuu i love you.
Myuu: ...
Shinn: I always thought those thoughts private and fought hard to keep my exciting down and..
Myuu: Its okay i found out after i died that we're not related.
Shinn: Oh!!
Shinn: Wait im kinda slow but so we're not related?
Myuu: No. I love you and ill look after you and wait for you in the afterlife.
Shinn: ...Suddenly, i just lost all my attraction to you.
Myuu: Thats okay, we'll be born again but this time i'll be a guy and you're gonna be my girlfriend and ill be your knight in shining armor. Its been determined.
Shinn: ??