My analogy: Where do you reside? A house, a condo, an apartment, a duplex? – There are many factors that go into this decision – location, environment, proximity to work, proximity to transportation etc.
What is it? The platform that was used to create your website is what you are looking for here. It’s the backbone and framework that powers your website – what gives it its look and feel, how it lays out on different devices, the functionality that’s available etc.
My recommendation: I recommend the WordPress CMS (Content Management System) to all of my clients. It’s the most popular website platform, powering over ~40% of all sites today. Why is it so popular? It’s like play doh – so flexible and agile. It will fit a business of any size, from a start-up to a Fortune 500 company, and can grow with you.