The debate raised its sonic head a few weeks ago, quickly escalating into one of those barroom epics that can confound music fans for hours at a time. Though nobody seems ready to anoint the Beach Boy sound as the American equivalent of The Beatles' Merseybeat mastery, it's tough to make the argument for another act. The Velvet Underground, Creedence Clearwater Revival, The E Street Band and the JBs, for instance, were all suggested and dismissed. I'm putting the question out to you. Are the Beach Boys the American equivalent of The Beatles; if not, who is, and why? Share your suggestions here or by e-mail to email@example.com. A selection of responses will run in an upcoming Pop Rocks column.