It really depends on the person. This may be an unpopular opinion today, but I strongly believe that someone doing what he loves will statistically be both happier and better off financially than someone in only for the money. So whatever makes their ears perk up: EE, chemistry, mechanical, math, physics, biology, etc.

And, as a complement, pick up a "computer-ish" minor to learn how to make a machine do your bidding. My 2c.