@InfiniteBoredom TNC looked great in the first game against LFY, and probably should've won it. They were 12k up (with alch giving aghs to almost everyone) but then had a very poor teamfight and lost pretty much all of it. Never had a chance in the second game though. I think OG learned a lot from watching them today, and I think they'll have a plan for them - I think OG will win it, but it will probably be a 2-1.
S4 played two axe games during the group (won against C9 and lost against LFY). Had a game on Centaur, Enigma, Bristle, Magnus, Shaker and NP as well - I think you might have been unlucky with the games you've caught, because he's been quite diverse actually.
I think Brew has worked quite well for them, first game aside where it looked like S4 didn't have the proper control groups set up (fecked up big time on the micro in the first few fights). They went 3-2 with Wyvern in the groups (losses to Newbee and VP), so I don't find that particularly strange - I think Fly generally picks it in some good games. I don't think drafting was the issue for OG in groups, they just didn't execute properly - poor laning in pretty much every game, as you say, which left them at a huge deficit going into the midgame. Crit, on the other hand, seems a bit too obsessed with the hero and played quite poorly on it in the Empire series.
VP looked incredible against LGD today, and I think LFY showed signs of weakness in their first game against TNC. I personally think LFY topped during the group stage and that teams will have a plan against them (like TNC in game 1), but if I'm wrong and they do beat VP they can go all the way. PPD really believes in LFY, and he's a much smarter man than I am.