GLTF, especially the binary format, is specifically design for transmission over the web. Wavefront is uncompressed text, Collada is even worse because it's extremely verbose XML. I don't know a lot about USDZ, but what I do know is that it's overkill for the web (graphics features that are mostly too costly to do in WebGL, additional scene description data like audio tracks, etc), while also lacking specific features that GLTF has that are aimed at the web, like streaming, progressive download of texture data.