As a FH dominant player, I don't have a favorite mid. The shot required dictates the disc selection. However, my most used mid is an Eclipse Axis. Great line-shaper. Before my switch to MVP mids, the bag contained Comets, Buzzzes and a Drone. Now I bag a Tangent, Axis, Vector and Tensor. I love Comets but the Tangent flies similarly but is easier for me to range. Axis and Vector are just a little more consistent in release than my Buzzzes. The Tensor just works better for me than my Drone.
Usage: Tangent: straight, turnovers, sweeping annys. Axis: hyzers, straight with fade, turnover with fade and long annys that need a little fade. Vector: straight with more fade, slight headwinds for an Axis flight or max power throws. Tensor: Heavy headwinds or straight with hefty fade.