I'd base it on who was most interested. If they were equally interested, then who I'd spent less time with recently, since we could use the opportunity to catch up a little.
Me, 30ish bi female, been doing solo poly for roughly 5 years. Gia, Clay, and Pike, my partners. Davis, ex/friend/"it's complicated." Eric, Gia's husband. Bee, Gia and Eric's toddler.