Alright we all remember the old trailer of portal and how amazingly awesome it was, so time to begin.
THEN:
Back when they first showed portal they showed us these really weird and strangely cool looking portals.

They also had that INSANELY sweet blurry gun that was thin.

They also showed us the playermodel which was a Male

The final image is of the buttons, they went from These blue buttons to the red ones

Finally, Many challenges were not included in the final release of portal, who knows why.
NOW:
What we have now is what we asked for in terms of portals
With the commercial release of Portal they changed them from Dimensional rifts to Fire.

WHY DID THEY DO THIS, we asked for it, they showed us the original plan for portals, which was based off the logo SPIRL, but people started saying they liked FIRE portals better, the original portals were not fire, BUT DIMENSIONAL RIFTS. We asked for fire and we got fire.
I dont know why they went from that cool thin gun to this ugly POS blocky thing and got rid of the awesome motion blur.

We then went from a MALE playermodel to a Female one we have come to know as CHELL, who she is and what relevance she plays we still dont know. But what is for sure, Aperture seems to be all about women.

My Final point is about the buttons, we went from LIGHT BLUE to DARK RED, I prefer the blue in some aspects, but the red is really nice too

SO MY QUESTION TO YOU IS, WHAT DO YOU PREFER, YOU CAN CHOOSE TO MIX AS WELL, THEN OR NOW?



) on portal gun was probably a special effect like the DOF for the TF2 trailers, not actually generated by the source engine.