I think you should compare Laravel to Yii2 or similar frameworks not just Middleware dispatchers like Slim or Mega Frameworks like ZF(2 or 3) and Symfony,
You should Compare Active record implementation to another Active record implementation not to a datamapper like Doctrine2
Laravel is a very Rails(ish) framework, Symfony is Java(ish) framework!!!
Understanding the designs idea behind frameworks is important for this compraison, but is good hit for marketing