It will be boring to see the day we'd agree on everything
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As I said, especially on a x-wind landing and places where you don't have a clear "horizon", a quick glance at your attitrude (how long does it take ? A blink ) to make sure your wings are level is the wise move.
On a 747 for instance, it's really important, as a wing flex on the always possible hard landing will get that outside engine pod that closer to the runway surface. The top of the instrument panel , again exception of a very few airplanes like the L-1011 are not a reliable reference.
Sorry that's how I've been flying, taught and practised...and I don't believe in seat-of-the-pants jet flying...on any airliner (and I've flown a few...)
On an other subject, the FCOM tables do not include runway slope...but the performance book for each airport, runway, obstacle, one-engine failure trajectory, etc... include all the data. The procedure is to ask for the print-out whether by fax from the station or via ACARS.