OK, let me get some facts out regarding Delta and United.
For Delta, all applications are manually scored by two retired pilots. Their only job at Delta is to score applications. Two pilots will score your application and they take the average of the two. There is no computer algorithm scoring at Delta.
For United, all applications are scored by the computer algorithm. When BK needs to fill a class (let's say 30) he will select the top 30 candidates from the application pile. He will review the application for accuracy and then send out an email invite.
I talked to BK at NGPA and WAI. One thing to remember is do not lie or inflate your application to get ahead of others. This is the biggest problem he is seeing right now. If you do either one, you are done with United forever. He will not tolerate it at all. There are been a few that have been caught at the interview. Honesty and integrity are huge. Please don't make this mistake.