You’re about 2-3 years from applying to any regionals, assuming you’re starting your flight training now.
By then, Compass may not exist, or may not be the right place to go. Respectfully, I think you’re getting ahead of yourself. Get your qualifications where they need to be, then once you have 1200 hours, and you’re a CFI, start targeting a regional and researching. Any regional can change in the blink of an eye. Your goal is not to get to X regional, it’s to get to X major, and you should pick whichever regional you think will get you there, but also a place where you wouldn’t mind being stuck. Also realize that getting hired at a major is not guaranteed to ever happen.
I can speak for Epic in New Smyrna and they’re fast. Pretty good training as well. ATP is probably best but can’t speak for them