It's a hard call to make, but I would say my Black Widow Ultimate 2014's. They are great for both gaming and productivity and their mechanical switches are very nice and oddly satisfying. But I also really all my other products, the Razer Leviathan, Razer Kraken Pro 2012, and my DeathAdder Chromas. I also am a big fan of the all the software. They work really well with all my Razer hardware and my systems and are very helpful for work and play. I never used to use gaming software other then distribution platforms but that all changed when I discovered Razer!!! Big Fan of the products all around!!!