I'm using http-vue-loader for loading Vue single file components in my project. The main reason is to skip Webpack and fully concetrate on ES6 and Vue. Unfortunatelly I cannot use import in SF components. It is limitation of http-vue-loader(see the open issues on github)
Are there any other alternatives(fully ES6)? Or do I need to move to Webpack?
You can use Vue CLI to scaffold your project. It fully manages Webpack (among other things) configuration for you so you can enjoy all of the features of Webpack (SFC, CSS loader, integration with SCSS/Less, hot reloading in dev env, minification and tree shaking in production build and many more) without the need to write single file of Webpack configuration