Go to Compass if you can get hired. They are a small company with attrition at the top of the list and are scheduled to increase their fleet by almost 50% very soon.
The pilot group is relatively young and they have bases in three time zones, though I recommend moving to base and flying as much as possible, at least once you upgrade.
The goal isn't to go to the best regional, the goal is to go to a major. If you move to base you can fly a bit more than your commuting colleagues which may allow you to get hired at a major a little sooner. Every seniority number counts so you want to get hired as soon as possible. Some may consider moving to base and flying more a sacrifice you should consider it an investment. A bonus to living in base is that you can be home drinking a beer while the guy you were flying with is still waiting for his flight or settling into the crew room for a terrible night's sleep.