I have stayed twice at BLT, both times Lakeview. And both times we could not see EWP. First, time we were 10th floor and the end the furtherest from the bridge. We actually had a beautiful view of Space Mountain and if you looked left off the Master Bedroom balcony you could see the castle. We could watch fireworks from our sofa. It was great.
Second time, we had the top floor just down the hall from the TOP of World lounge on the inner circle but again, no view of EWP. We could hear it but not see it. And we had a view of the lake. I think it turns in front of BLT closer to the CR. We love this location being so close to lounge, just run down the hall to watch Wishes.
So, we had great lakeviews both times just not of EWP. I found the bridge connecting the BLT to CR a great place to watch EWP. Good luck.