I love them both equally--but they're simply in different stages.
For me, working on multiple stories feels like raising multiple children. As with children, it's easier to have more than one. Mothering got so much easier after the second child. By that time, the eldest was mature enough to have conversations with, to share projects with, to trust with small responsibilities. And that all made having a baby even more fun. There were no longer moments in the day where I thought, "I just want to talk to someone who can talk back!" I appreciated the toddler's toddlerness more and the baby's babiness more because I had more perspective on how fleeting each stage was.
|(Sometimes I spend time with my book babies and my real baby at the same time, too...)|
Just like as a mother you don't love one child less because you happen to be cuddling with the other at the moment, it's possible that spreading your love out a little actually helps your stories. You learn something on the new one that helps fix an issue with the older one. Stumbling blocks with the first keep you aware of your weaknesses so you won't make the same mistakes again.
I'm curious if anyone else feels this way. Do you work on more than one story at a time? How do you feel about it?