Congrats on both. The answer to this is in what's most important to you. If msp based is most important, go with SkyWest. If you're chasing an upgrade go with compass. You can get msp based there as well but you'll wait a bit longer for it. I can't speak for compass but I do know msp has expanded like crazy here since I've been at skywest. As for the long upgrade I don't think it will take 7 years here like people say.

I had the same decision to make as you. I elected not to chase the upgrade carrot and work for a company I knew I would be happy with until the major job opportunity comes. At first I was biting my lip a little over my decision, but now that I've been on property a few months and have settled into my base I am not even thinking twice about it. Absolutely no regrets and I'm happy, overall.

If you'd like any more of my (slightly biased I'll admit) input feel free to send me a pm.