ICSTOR has better graphics and animations, but his games end up being too vanilla. One big exception is the teacher storyline of course. Rainces is better IMO because he focuses on the story and characters more than sex and for adult games this is what I think should be standard.
I have no Idea why somebody would spend hours playing a vanilla porn game like Being A Dik though. Just go to the front page of pornhub.
A good part of the story and some of the characters for BBS are pulled from other games, most specifically Big Brother. Liza in BBS is a virtual clone of Alice from Big Brother, and has some very similar storylines. Bobby is an awful lot like the main character from that story, although to be fair the main characters in a lot of games are fairly generic. It's felt at times like Rainces couldn't come up with ideas and turned to other games for inspiration. Again, to be fair, there's a lot of stories and themes that people love to see in these games. I don't think Rainces did a good job of putting them together in a coherent manner though. A lot of games have non-canon special updates for holidays and the like where the story goes on a tangent that isn't followed through on later updates. Most updates of BBS felt kind of like that. We rarely if even seemed to pick up right where we left off, or even to revisit it later. Rainces just would generate content that loosely fit into the overall story.
I think the strength of BBS is the models. Not necessarily the renders, as they aren't necessarily the highest quality, but the models themselves and how Rainces customized them. Lucy isn't really like any other character I've seen before. Anna is also new to me, and Julia. They aren't the best renders, but damn if I didn't want to fuck them all the first time I saw them.
There's also the perpetual promise of incest just over the horizon that kept me hooked. It always felt pretty close, and that kept me coming back, as did the promise of Bobby being bad. Bobby is pretty mediocre as a bad character though. His attempts at being bad are foiled easily by the women, or by himself.
So we'll see what Rainces does with the new update which is also apparently a redoing of the game. I know a lot of people liked the game just as it was, slow pace and blue-balling and all. I liked it for what I hoped it would be more so than for what it was. Maybe everyone can be happy with what he puts out though, assuming he does come out with something.