Test Subject #13 Storyline
I liked B because it was more innovative going through chambers backwards would be very unique but it seems like the whole story would be a fight to get through apeture science and if done right it could feel like you were forging your one way the whole time instead of just following a line of test chambers.
you can do it. i believe in you!
Bad idea, I barely have enough will power to do one, which is why I'm making this thread and opening this project up to more people.
I think A is a better idea.
Though B sounds more controversial, I think the collisions you'd get with the Portal storyline would waste the idea. Sure, there are more Portal-clones (also in storyline), but why is that so bad? Portal was one of the greatest games that were launched in the past few years, and not only because of the gameplay concept, but also of the story that, how small it was, benefited of an extreme growth during the game. Also the mysteries in it, that still aren't all solved when you hit the credits, add a lot of depth.
"Duct Tape is the answer."
Also, you said that Story B had a more developed storyline, which is why it sounds cooler right now. But just develop the story for A and you'll be set. And I think i speak for a number of us when I say more BTS = GOOD.
i liked the BTS in the retail maps cuz it led to story, and eventually was
what do you take me for ricotz :p Its not as if I'm going to make some really terrible quality BTS only mappack is it now?
Why do I have this feeling the previous post was refering to my screenshots?
It's not Behind The Scenes! It's part of the test!
Yeah, maybe I gotta change the textures...
"Duct Tape is the answer."
I think one "bad scientist" would be a good surprise for the player 
(percentage calculation sphere self-test failed!)
108.1% done, -8.1% remaining...
Released here!
All maps for Portal (1/2) worth playing are mirrored here.
Do I smell a boss battle?