Horizon CJO would withdraw my Alaska app wait or accept?

I applied to Alaska, Hawaiian, and Horizon. I got a CJO with Horizon, but moving forward with the background check would withdraw my Alaska/Hawaiian applications.

Alaska is my top choice. I applied 12/4 and people with similar timelines are starting to hear back. Horizon wants me to move forward now.

Would you: Accept Horizon and risk losing Alaska? Ask to delay? Decline and wait it out?

Anyone been in this exact spot?