Wii U over the Xbone AC Bundle and threatening the top 40, currently at 41. It seems to be overall trending up for the past few days.

Also, binary brings out a good point. Just how much did MS overship this ACU bundle? It's been out of production for a while I think since MCC is the new primary bundle.

I found this post from Abdiel on GAF's Jan 2015 NPD prediction thread:

"We've got a lot of stock of XB1's in our [distribution channels], from what I see. They're still moving, but the number is not small, by any means. Certainly far more than our PS4 stock, but Sony has gotten very good at replenishing us as soon as we need it, steady, constant shipments. We got massive shipments of XB1 in that holiday push, and now we're just kinda burning that down. As to the actual gap, I don't like to predict that, because our stores are only one of the major chains, and I can't extrapolate how the numbers gap will work out on that scale."

"As soon as the price drop ended for the XB1, it was like someone pulled the emergency brake, people were coming in with the impression the price was still lower, and were leaving annoyed, rather than pay the difference, and the momentum tanked really, really fast. Once the price dropped again, well, it certainly picked up more speed again, but it isn't really selling on the same level as it was prior. That gap in time really didn't help them. I'm not saying that people went out and bought a PS4 instead, but some people just elected to simply not buy at all. We'll see if those customers return sooner or later."

Why is the WiiU moving up? Splatoon aint coming out for 7 weeks.... :0

I dont think any games are coming out soon???

Notice SSB is in the top 10 again. The DLC and fighter ballot seems to have generated enough buzz to significantly boost sales (on Amazon, at least).

Monthly needs updating...
PS4: 7 and 14
Xbox One: 46 abd 51
WiiU: 75
PS3: 87

It's not so tough as you think,gc's first two years numbers are inflated(Especially in the USA) from the two big price drops(-50$  & -50$)year on year!

Wii u is now selling near to gamecube,as the gc's price drops effect was curtailed in its third year(Well it had sold super fast with them in its first two years,so in the third year that fall was expected)gc sold 4m rounded in its third year!

Not unfeasible for wii u doing it this year,or smashing it with a 50$ price cut...

WTF!Wii u at 39# threatening the Halo MCC bundle...:O What has happened?That's higher from that wii u was having on holidays!:P

I'm going to be bold here and say that the Direct in general helped the Wii U sustain and even boost its momentum moving forward. Not only did we get more info on Splatoon - which included the new ranked mode which no doubt helped assuage doubts that about its substance - and other upcoming titles like Mario Maker and Yoshi, it also showed off titles that people weren't anticipating seeing soon if at all, including SMT x FE and FF5. On top of that, they showed off more Smash DLC than people were expecting plus the Smash Ballot. The reason those things matter is they are mid to long term plans.  Why this is important is that I think it helped to counter the consumer uncertainty about the Wii U's immediate future. A lot of rampant doom and gloom sprung out of the mentioning of NX and I think a lot of people kinda took a step back as a result. The Direct, especially the mention of long term projects like SMT x FE, FF5, and especially the Smash Ballot, helped assure people that the Wii U is still getting substantial support.

Plus, the Wii U's price is a touch lower than MSRP on Amazon right now, which helps no doubt.

Wii-U coming in second (US) would be a nice change of pace. I don't see it happening, though I am glad the Wii-U is doing better. The question I have is, is the Wii-U doing better or do we just have a situation where we have less sales/individual skews/new game to compete with?

Well the Wii U is doing better, roughly 20 to 25% better for the year so far compared to 2014. 

Looking at the April 2014 monthly and what all was in it and then looking at the sales for those things, no I don't think that we simply have an issue of less being on the chart.  There is some of that maybe since Destiny and Watch Dogs charted early, but that's only four spaces on the charts, eight once the last gen versions charted.  The Wii U is up more than 50 spaces at least, and probably more than that, year on year on Amazon.  And since the Xbone and PS4 SKUs provide a more stable idea of relative sales, I think we can safely say Wii U is indeed doing much better, even with the division of the Xbone's SKUs blurring things a bit.