My favorite is Long Beach Bar 'Bug Light' in Orient, Long Island, New York.
In addition to it's many beautiful and majestic looks, I have the opportunity to participate in the upgrade and maintenance of this lighthouse. This light was rebuilt from the foundation up, and will celebate it's 10th Anniversary on September 2, 2000. You can't really pick a favorite until you've adopted one and take an active role in it's future.
NE View of Long Beach Bar 'Bug Light' -