Mid tower cases are, arguably, the most popular type that you can get for your gaming PC build. This is due to a balance size between form and function, generally being lighter and smaller than full towers while, largely, being able to accommodate the same components. The main advantage of full towers, however, is the increased building space and breathing room, meaning support for larger radiators (such as 360mm models) and bigger graphics cards (like the RTX 3090 Ti). Full towers also tend to be more expensive depending on the manufacturer, so it comes down to what your usage requirements are.