While Firefox does appear to render the page faster, it also seems to wait longer to start, so its page-loading experience is something like "......show."

Chrome starts rendering sooner but takes longer to do it (probably as it waits for pieces of the page to load) so its experience for me is more like "...shoooow."

I don't think it really matters either way, although Chrome 13's pre-rendering stuff often tips the balance that way.