The ideal qualifications to get hired off the street by a top major are, in this order of priority:

Turbine PIC
Knowing Someone
>100,000# GTOW (if it weighs less than that, it had better be heavily armed)
121 PIC
Turbojet
Crew
Glass
Turbine Time


The more you have, the better...but don't sacrifice something high on the list to get something lower down. Prop FO's who lateral to the jet instead of upgrading are passing up a golden opportunity. That's OK if it's a well thought out QOL issue, but if you just want to fly a jet, upgrade in the prop now, then do the jet in a few years...who knows it might be a boeing instead of an RJ...