Who wins? And Sly, if you haven't seen a lot of Laguna, don't answer "Floyd easily", cause it wouldn't be Floyd easily. Laguna was arguably faster than Floyd, and he was a little taller. Actually, I would say that Laguna's hands were a bit faster than Floyd's. On top of that, Laguna had bar none one of the 10 best jabs in history. I do think Floyd would win, but he'd have to become aggressive Floyd to do so. I think Floyd would pull away late, but Laguna would give him all he can handle for awhile, and would probably even be up on the cards going into the late rounds.
It isn't 2003 anymore. There's this thing called... YouTube. On your free time, go watch Laguna's fight with Mando Ramos. It was a Mayweather-Gatti like clinic, only more impressive because Ramos was a quality champion and not a scrub like Gatti.