Any former Alaska people willing to share their experiences jumping ship from Alaska?

What was the biggest difference you noticed? Does Alaska have anything better? (Highly doubtful)

To date, the highest amount of pilot attrition at Alaska has left for United.

Was it worth the jump? Would leaving 5+ years seniority at Alaska be a no brainer? Currently live in base which is also a United coastal base.

Recommendations on which app review service to use? Any tips on landing an interview?

Any insight is greatly appreciated.