exactly! It depands on everybody's expertise. If you are an internal, non-talkative guys,you are suitable to choose those very specific stuff which are hard to pickup for novices such as RF, Chip,Aerospace/Aeronautic.
MIS is a good choice for talkative guys because few technical issues and more businees rules in taht field. Most people change major come into this. The better English, the more prospects.
最重要的是英语！！！ 还没来的朋友，不要把时间浪费在学各种技术上（除非你英语真得很棒），全力以赴学英语吧！到这儿你就知道语言才是你在北美生存发展的最大障碍（也是最有力的工具）。语言越好，你生存发展的路子越宽 ... ...