I'm currently holding offers for both Tuck and Fuqua (well, and Ross but I'm less interested...)

Basically: Tuck is giving me $12k, no scholarship offer from Fuqua.

I hold US permanent residency so post degree visa is not a concern.

Aiming for Big Tech (Amazon, Apple, Google, along these lines.)

Pluses / minuses for each school? I have gone back and forth a couple of times in the past few days.

Both great schools. It might depend on what sort of role you are looking for. 
Try: How to use LinkedIn to find the best school www.find-mba.com/board/33571 

In terms of Big Tech, my feeling is that Fuqua might have a very very slight edge. However, all of these firms tend to recruit from both schools and the percentages going into technology overall from recent MBA classes are comparable (23% Fuqua, Tuck 19%). 

Thank you for your thoughts. After deliberation, I have accepted the offer from Fuqua. Tuck's scholarship offer was nice, but in the end the majority of the people I conferred with told me that Fuqua had a better reputation in Big Tech. 

It seems Fuqua is better for big tech, and big firms generally: http://rankings.ft.com/businessschoolrankings/duke-university-fuqua/global-mba-ranking-2020#profile
Tuck is better for e-commerce and firms under 5,000 people: http://rankings.ft.com/businessschoolrankings/dartmouth-college-tuck/global-mba-ranking-2020#profile

Thanks. Yeah, I think it's the right decision.