If clarity is your main goal, Meinl's 15" Extra Dry Medium Hi Hats might be the perfect answer. These plates have a very dark timbre and low pitch, with an unreal amount of clarity and crispiness when closed. The open sound is crunchy and raw, with a slightly trashy tinge.
These hats could sound killer in music that demands a more refined, more artistic sound. They're louder and a bit deeper than the 14" model.