Which Phones to Sell?

So I now have three useful phones. N7000 Galaxy Note 1 i9250 GSM Galaxy Nexus iPhone 4 The Galaxy Note was my iPhone 4 replacement and the Galaxy Nexus was bought because I was bored with the Note (I babied that Note and didn’t want to go too flash crazy). But now the iPhone 4 was recently returned to me and I don’t need three working phones. (I only have 1 sim card). I’m thinking of selling the Note and Nexus and keeping the iPhone 4, because the iPhone 4 seems to hold more value. It has does everything I would normally do on the Android (call, text, WhatsApp and surf but no turn by turn navigation) and I was going to get the Note 2 in 6 months (or sooner) for $0. From what I’ve seen, the iOS products are easier for my kids to interact with than Android. So selling the iPhone seems like a bigger loss to me than selling both Android. But I don’t know, I seem torn. What Would You Do?