Forget the Embraer, simple as that.
There are too few jets right now in too few bases, I will have gotten my command on the dash long before i ever get near the jet as the above poster has said.
And right now Dash command is enough to get you a job with BA, Jet2 anyway so don't know why so many people are obsessed with getting on the jet and having to move to MAN/BHX. That might not be the case in 5 years but I don't see why it won't. Bide your time on the Dash and live somewhere nice in the regions and then when it comes time to move on, switch operator. Simples.