Should I leave her added to my friend's list on Facebook?

Should I leave her added to my friend's list on Facebook?

I am cleaning out my Facebook friend list and trying to decide on who goes and who stays. And, a couple of situations have me perplexed as to what to do.

There's a girl who was in my game clan that I had added to my friend list on Facebook. She was also part of our game clan Facebook group. Awhile back, she quit our clan but she's still added. I don't have anything against her, but then again I don't have anything in common with her anymore. We were always friendly toward each other, now she doesn't bother speaking to me. I'm tempted to delete her off my friend list as I don't feel a connection of friendship from her anymore. I just liked that we were friends and she was a cool person and so I feel torn about deleting her as if our friendship meant nothing.

Also there is another girl that is still in my game clan, added to my Facebook friend list. And, she is a recent new mom so she can't be active with our clan anymore. But, she's a really nice girl and we had some nice talks on Facebook. At least three times a day, she comes up with photos of her baby and randomness. I don't mind seeing her posts though some of her updates come across as rants which I really don't want to see. I don't guess you would say we are 'friends' but we were/are friendly. I would feel uncomfortable deleting her as she is also friends with another friend of mine on Facebook and it might lead to drama and tension.

I pretty much know everyone on my friend list, so these people are not random and I know why they should or should not be deleted but for sentimental reasons it's hard deleting them.

What would you do? Also what are some of the criteria for leaving someone on your Facebook friend list?