<p>It sounds like you’re probably better prepared for Bio.
There’s already a thread on this: <a href=“http://talk.collegeconfidential.com/sat-act-tests-test-preparation/940250-sat-subject-test-biology-e-biology-m.html[/url]”>http://talk.collegeconfidential.com/sat-act-tests-test-preparation/940250-sat-subject-test-biology-e-biology-m.html</a>
It seems to be the general consensus that Bio E is easier.
However, keep in mind that if you’re aiming for engineering, many of the more prestigous schools require that you take your choice of either Physics or Chemistry. (+ Math II + one of your choice)
Best of luck!</p>