For low-end computing it's pretty much a toss-up. The i3 vs. APU argument really goes to desired functionality. In terms of general computing the i3 will beat the APU. Yet, Intel has yet to compete with the integrated graphics chip on AMD's APUs.
Streaming video, email, general internet, office programs: both are fine.
I would (out of personal bias) go with the Intel Build. You can't beat that power draw, but Minecraft is going to be the upper limit of the Intel chip (in terms of graphics).