GT CS is huge and in a dedicated college, i.e. college of computing. So you can pretty much find any class you can think of.
As for recruiting in Silicon Valley, as follows, GT ranks 6 and UIUC 7.
https://qz.com/967985/silicon-valley-companies-like-apple-aapl-hires-the-most-alumni-of-these-10-universities-and-none-of-them-are-in-the-ivy-league/
As you are from California, weather-wise, GT would be much better and Atlanta would be much more fun than Champaign.