I saw a lot of talk in this thread regarding the 175 vs the 145 and CRJ relating to different bases for the different aircraft. I'm just in the research process now prior to applying to a regional in the next week or so and would like to know what difference it makes which aircraft a pilot is flying? I'm not familiar enough with the aircraft in mention to know if one is "better" than the other. And since I would be commuting to either ORD or DFW it appears, would there be any advantage of one over the other?