There is a little bit of a bubble right now, and it will come crashing down soon. Those "good" regionals that you are talking about have classes filled for several months out, but are starting to lose the same number that they are hiring, or more.
The majors and cargo carriers need to hire 5000+ per year for the next 10+ years. There is a shortage of qualified pilots to fill these seats.
Look at the majors that are starting to reduce their hiring mins and holding in-house career fairs. The legacy airlines said 2 years ago that they weren't going to go to job fairs like OBAP and NGPA again, but they are back there recruiting again.
There is a shortage of good, professional, experienced, and well qualified pilots. Not every regional pilot is qualified for a legacy job. The pool of regional pilots that are qualified, however, is starting to get small pretty quickly.
Those that have no check ride failures, no DWI's, 2000TPIC, Line Check Airman, advanced university degree, and a good overall person are in very high demand right now. I have seen pilots with these qualifications go from no calls at all to three interviews at legacies/good majors in a matter of 2 weeks.