Then it is a matter of picking which features you need the most. Do you need 802.11ac, or the ability to run broadband modems, or run the router as a NAS. Only you can really answer all these questions. The signal levels of the routers will not be all that much different, all you will get are peoples opinions based on how well it runs in their house which means nothing about how well it will run in your house. Worry about the features you need and stick to better known brands and you will likely get a router that works well for you.