To teach English at the college level, is there an advantage to having a masters in English vs Education? I'm currently in my second year of teaching English at the secondary level, and I'm wondering if it's better to pursue a Master's  in English (I have a Bachelor's in English Lit.) or Education. Is there a strong advantage to one or the other in terms of professional development for teachers? I also see myself teaching at the college level someday.
Assuming you are in the U.S., a master's degree in English may qualify you to teach at a community college (but there are enough unemployed Ph.D.s in English that the competition is tough for those with only a master's degree).  It would definitely not be enough for a regular faculty position at a four-year college, but it could be a step towards earning a Ph.D.

A master's degree in education could be a valuable credential in secondary education, depending on how your school system handles it, but it counts for nothing if you'd like to teach English at the college level.  (Furthermore, it doesn't qualify you to teach in a department of education, which would require a doctorate.)