First of All, Babylon was a good idea but also was poorly executed, the first three chapters were outstanding, it remembered me to psycho pass or the suspense that Johan from Monster gave me even if he doesn't appear very much. They could have gone through the way of the investigation about that psycho-killer and the dark side of politic, bribery, prostitution etc etc. But sadly they went to the plot about that suicide law, which is so stupid in my opinion because it was enough just legalizing euthanasia all around the world, it's the same principle of self-choice.
The character development is also poor, the main antagonist is not developed in all the anime, she is just another psycho because she wanted, and you can not become a bad person just because yo want to, that depends of the different situations you have lived
The protagonist is just interestic because he always think about justice and it real meaning which is a behavior very human because we always think about thinks we don't know or things we are not sure, and her revenge wish is understable because the villain induced a lot of their friends to suicide
the secondary characters doesn't get any development even when some of them were soo interestic, the only supporting who was a good character was the U S president, because he always think before to do something, he understand his position as a politician, he tries to understand everyone opinion, sadly he ended on that way
And the WORST aspect of this anime is the way that the antagonist induced people to suicide, because it was too convenient and stupid, the sex appeal doesn't have that power and it was a resource too poor and pathetic because it become an unwieldy power to the author because whoever she whisper at his/her ear will suicide no matter what, just because she was too sexy??
Anyway, babylon, good idea, badly executed, btw the soundtrack was so good, the best thing of the anime
Sorry if its too difficult to understand me, english is not my main language