User blog comment:Nexo 090/Sander vs. Alex/@comment-1500935-20110913161333

Sander is a real lunatic, thinking himself as an genius in all types of art, and ADAM's side effects only made him worse. The novel is pretty well descriptive on the subject and it was quite interesting to see how he behaved with other characters such as Ryan or McDonagh (which don't really like him nor his shows).

On the contrary, Alexander is only a scientist, cold in his doings and with as much morality as Rapture asked. But finally opened his heart to Sofia Lamb (in fact, he loved her, but it is not very detailed in the in-game diaries) which leaded him to participate in his own experiment and ended as we all know. Then, he turned mad only by the ADAM side-effects, which gave him a second personality, in the same way as Dr. Jekyll and Mr. Hyde, but finally stayed as the latter's state of mind. Too bad he wasn't much present in the novel, I think this character was quite fascinating and worth to develop in Rapture's story, as much as good old Sinclair. =)

But to answer to the matter of this blog, you can't compare those two characters and if you've done it, well you didn't really catch the atmosphere behind those two games. BioShock's environment is more sad than mad.