Outrider - maybe the only other large ship that's close to the firespray for reduced use. Dash is still a huge threat for many lists though. The barrel roll, all 3 hard turns, and a 360 turret give it the edge though.
To be fair, Dash was the only YT-2400 pilot that was ever really competitive. Leebo, Eaden Vrill, and the generic Fringer were dead on arrival (doesn't help that Eaden's ability is anti-synergistic with the Outsider title).
It's basically like the E-wing situation where there's one good pilot with a few viable builds and the rest is overcosted for what it does.
I've found pretty good use in a dual YT-2400 Dash+tact/Eaden list. Dash has outrider title, and has be wants to be at range 2, its more common to trigger tactician for Eaden. I now put Zeb on Eaden so I can get 4 dice at range 1. I throw a Ion cannon on Eaden to help keep enemy stressed.