We all have our opinions on Yosemite Valley. As a former rock climber I just LOVE Yosemite Valley, regardless of the crowds. The waterfalls and cliffs are unparalleled. Lewis Creek is pretty and more "wilderness", if that is what you are looking for, but the hike up next to Yosemite Falls is spectacular. You simply have to have the attitude that sharing this with many day-hikers is OK. Since the poster is going mid-June the waterfalls should be still be running.

Check the real-time flow in Yosemite Falls on this website.
http://www.nps.gov/yose/learn/photosmultimedia/webcams.htm