How do I use an if/else statement with WP_Query

I’m trying to use a different WP_Query object depending on what type of page is being viewed. I’d like to do it without having to repeat the loop over and over again. I just want to use different WP_Query statements with a conditional. Is this possible, or is there another way to do this? Right now I’m only getting empty output on my pages. Code is below.

$paged = (get_query_var('paged')) ? get_query_var('paged') : 1;

// retrieve posts based on category or pages
$args=array(
    'category_name'=>'name',
    'posts_per_page'=>10,
    'paged'=>$paged
);

if (is_page()) {        
    //create a new instance
    $wp_query = new WP_Query($args);
}

else {
    //create a new instance
    $wp_query = new WP_Query(); 
}

// the Loop
while ($wp_query->have_posts()) : $wp_query->the_post();

// set $more to 0 in order to only get the first part of the post
global $more;
$more = 0;

// Do post layout here

endwhile;