Ask HN: Should I try to get job at Big Four or settle down as Web/Mobile dev

Hi HN, I'm a cs junior at fairly small state university. My GPA is around 3.5 & I've one year left to graduate with only non-cs classes left. I was clueless when I joined CS as freshman & followed professors instructions to focus on web dev, got into many internship & have done really well in all of them. At my current internship, biggest IT shop in my state where I get paid really well, I thrive working on backend to frontend and both iOS and Android development. I helped introduce Node, many js frameworks & native app dev instead of Html/js. Everyone likes me & am guarenteed job over there. However, instead of staying in my comfort zone of web dev and mobile dev here, I thought I should try to land job at Big Companies in Valley like Google, Facebook etc. So, during this one year left I could focus on learning data structures, algorithms, oss contribution, github building and coding interviews. While focusing on web dev, I'd neglected these topics. Do you think this is right choice? Like in my freshman years, I'm in a dilemma. Should I graduate early and land job at local big companies and quickly climb coorporate ladder or spent one year to master core problem solving & land job in big valley companies?