The patent bar is the only bar that has specific requirements re your undergraduate degree. Look them up, make sure you meet the requirements. You can do IP law without passing the patent bar, but you are somewhat limited (IIRC you can't do patent prosecution). No idea which specific area is most secure and I'm quite sure no one knows what the job market will be like 8yrs from now when you are ready, stick with what you like best. If you enjoy what you study and do, you'll do well at it and there will always be room at the top no matter what field you chose. Shoot for a 3.9+ gpa in college, else your ability to get into a top law school will be hampered (which will then make getting a top job much more difficult).