Guaraguao,
If Eagle being sold doesnt bother you, if upgrade doesnt matter and LGA (not JFK) is a home base for you, then maybe Eagle is your place?
I have a good grasp on the regionals and have friends everywhere. I did get out of the regionals for a reason... My friends at Eagle mainly dislike it because of the poor upgrade time and the unstable future that lies ahead... Also as a jr pilot, you will be on researve for quite a while hating life... I did 1 year at my old company and my one buddy did 2 years of it a Eagle. Its brutal at a regional! Although at Eagle, LGA may have less of a reserve time than ORD...
I have actually worked for Republic while in college as a ramper. They are a great company (for airline standards). My friends there like the growth which equals less time on reserve and failry the quick upgrades as of recent and the stability. However, the downside to Republic is that they have a ton of odd bases and have a hisotry of changing them...
For the guy that wants to make a career out of the airlines, Republic is the choice. However, if you want to fly out of your home town and not make it a career, then go to Eagle and dont postpone you class date. Good luck and have fun flying that ERJ around the east coast! Ive done my fair share of it on the CRJ and its a blast, especially in the winter time!