Just my 2 cents, having played against the CGB deck. The deck is impossible to play ramp against. It felt unwinable to me, although I think I went 1-2 with my monoG. Overal though, I think it was 1-3 or 4 for ramp strategies, as my Selesnya Ramp couldn't beat it either, and its (my deck's) control elements were totally blanked. I'm not sure I played them perfectly, but it was definitely an incredibly tough matchup.
Can it out control control? Possibly not, but if you think mill is beating a deck that main decks 3
Felidar Cubs, I am not so certain. It would, however, be an interesting match to watch.
On the other hand, my Red aggro would steamroll this deck. I wouldn't be surprised if it's 4-1 vs this, even on the draw, although I did lose on the draw when we matched up - I attribute that to me overplaying my hand though, because I thought I'd be able to flip Chandra. Without that mistake (devoid is not red!) I think I win that match too, bringing us to 3-0 for me, but it's not 100% certain - 2-1 was the actual.
Here's the important takeaway from the above... Control can beat ramp, and aggro will beat control. We have a healthy META, finally!
I just need to think about how I'd side-board against his deck now, in order to beat it. He suggested gruul ramp, but I haven't made it to gruul yet, I just started doing the guilds yesterday.