You can do this using WP_Query since 3.1 with a meta_query.
$args = array(
'meta_key' => '_count-views_all',
'orderby' => 'meta_value_num',
'order' => $sortOrder,
'posts_per_page' => 9,
'paged' => $paged,
'meta_query' => array(
'relation' => 'OR'
array(
'key' => 'contributorid1',
'value' => $id,
'compare' => '='
),
array(
'key' => 'contributorid2',
'value' => $id,
'compare' => '='
)
)
);
$query = new WP_Query( $args );