childless

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.4.2/jquery.min.js" type="text/javascript" charset="utf-8"></script>
<script>
$.extend($.expr[':'], {
    childless: function(a) {
        return !$(a).children().not('a').size();
    }
});

$(function() {
	console.log($('.value:childless').get());
});
</script>

<div class="value">Some value</div>

<div class="value">Some <a href="#">value</a></div>

<div class="value">
    <span class="address-1">...</span>
    <span class="address-2">...</span>
</div>