For me its the powerport 10. I ended up buying two. One for home and one for my work bag. I've always got a lot of gear to charge. Multiple tablets, phones, console controllers, cameras etc and to do it all in one spot from one plug socket/power outlet is a massive convenience. Plus, the fast speed of the charging is a big bonus. It's also perfect for traveling with as it's small and light and most hotel rooms have minimal power outlets.