BioEngineering or ChemEngineering for BEM Grad + Schedule?

<p>Title says it all. </p>

<ol>
<li><p>Which major will prepare me better if I aspire to major in Biomedical Engineering for grad school? Which major is better (think pay) if I opt NOT to go to grad school right away?</p></li>
<li><p>Also, how much biology is there in Biomedical Engineering, compared to Medicine? Is it less memorization and more problem solving, or are they the same?</p></li>
<li><p>How useless is AP Economics for an Engineering major? I'm considering taking it because it seems an easy to keep good grades in, but I'm not sure if it's worth the slot, considering there might be some other, more interesting electives I might want to take instead</p></li>
</ol>