[xsl] Efficiency: predicate vs function

[Justin Johansson <procode@xxxxxxxxxx>]

May I please seek the list's enlightenment.

If a standard function exists to do the same thing as can me done with
a predicate on a sequence, which is generally the more efficient
to choose; processor dependent or is it just a moot point?

For example, to return a sequence of all items but the last, which of the
following is better?

$x[ position() > 1 ]

or

remove( $x , 1 )

Thanks very much.

Justin Johansson