Here's a comparison video which includes the Echo 58V and the Stihl. Overall, the Echo either ties or beats all of them,..including the Stihl,..which is an $800 saw. The Stihl has the fastest sprocket speed, but it doesn't have the torque to enable it to cut as fast as the Echo.
Echo 58V, $339 (including battery and charger)
Stihl 220C, $815 (including the biggest battery available and a charger)
