AFAIK the PSU Engineering brand is VERY strong.
The difference might be geographical: both are strong in the mid Atlantic, PSU may have more influence in NYS, OH, and New England (Philly, NYC Boston) whereas VTech may be stronger in the “upper” South.
I’m not sure even in the DC area that there’s a preference for VTech grads over PSU grads all things being equal.
The VTech brand will carry him farther in NC/SC/KY/TN if that’s where he wants to work but even there employers know a PSU degree.
Especially if you’d have to take parental loans, don’t look back.