If the purpose of learning a framework is to be most applicable to a new job opportunity/internship - I'd take a peek at front end engineering job listings for your top companies and learn the common framework listed. React seems to be very popular these days - that's what I use currently but a couple years ago it was Angular, so things change.
If this isn't necessarily for interviewing or getting the job I would recommend just building a project, any project, and pick a framework that interests you most. Then build it with two others and compare for yourself what you liked most and why. To echo what Ujjwal Kanth said, frameworks are tools so you can't really judge a tool if you don't know the task it's being used for.