Probably McKay.
There was a strong technical slant in that show.
EDIT:
> For instance, he knew that when Carter got the Stargate working with three supercomputers, they ignored 220 of the 400 feedback signals the Stargate can emit during any given dialing sequence.
http://stargate.wikia.com/wiki/Meredith_Rodney_McKay
I miss stargate so much.
My own supposition is that it's the standard rights-squatting thing a studio does when they're done producing a given work and don't want to compete against 'their' IP being used by someone that actually has a good story to tell.
All of them failed. I really don't know why MGM didn't gave it to a AAA studio, such shame...
In one of his first appearances on SG1, he invites Carter to the cafeteria, mentioning that they have lemon chicken, with excitement. If I'm not mistaken, it's not until the SGA fork that he seems to be allergic to citrus.
...I'm really embarrassed that I know that from memory.