Keep in mind the pay aspect. Second year FO's at my company are making $43,000/yr here if you want to work, and that's just based on 90 hours of credit and 300 hours of per diem/month. If you're in it for the $$ some second year FO's are clearing $4k/month (and no, not the senior ones either, they normally go for commutable schedules and days off ).

Also keep in mind generally with the better companies you'll get better health benefits, retirement, (401k here is 7% matching dollar for dollar, unheard of for a regional, it's a LOT of money after a few years) treatment by management, longer overnights (I've never done an overnight less then 10.5 hours, vs. some friends at some bottom feeders who routinely do 9 hoursvor even reduced rest) etc.

I've seen reports upgrade at Colgan is now more like 20+ months. That's a long time making $20-25k/yr (and with no per diem, flying an airplane with no APU, etc.). "Fast Upgrade", maybe, but maybe not. A friend of mine was at CommutAir and left just prior to the annoucement of the Dash's - upgrade was over 3 years - to the 1900! Some people go to CommutAir though, get some time in the 1900, and then go to Gulfstream as a street hire CA.

Pick a company, if it doesn't work or you see it's not working out start up with a backup plan before you lose your job.