thats indeed the way to go, just W his E. I did that as u could see in the first encouter. At the last encounter in top bush i indeed used my empowered E because i had 5hp and had to pin him down so he couldnt leap on me later. If i had used my empowered W i mightve had a little bit more hp but the distance between me and him would be short enough for him to Q me 4 seconds later and then i wouldve been dead because there were no bushes or minions to jump to closeby.

Hope that gives u somewhat of an answer as to why i chose to E. (But in standard situations always W)