It seems offense rules NU; I threw together 6 sweepers and am doing pretty well. stuff like gorebyss, klingklang, and altaria rips stuff up. Also, CB slaking is pretty much guaranteed to OHKO somethng every time it comes in.
Interestingly enough, there are several players in the top ten who run stall. The biggest reason why you're not seeing a lot of stallish teams yet is because the metagame is still relatively undeveloped, imo; personally, I run into new threats almost every single time I start a new battle. Things like Scarf Pinsir have completely derailed my offensive team simply because I kinda forgot Pinsir was even in the tier. XD
Offensive teams will probably still be dominant for a while until the meta settles down and people have identified and separated legitimate threats from random, somewhat-effective 'mons.
Not with Sableye walling everything.
I've seen very few Sableye, to be honest. And I think the only time I do see it is one person running it over and over. Maybe it's just me but it seems like people are avoiding it and rather playing around with the huge variety of the tier.
I said it in UU, but no one listened. And I didn't blame them.
I said it in RU, but most people brushed it aside. And I swept them.
Now I'll say it in NU.
Use Scarf Braviary.
Outspeeds everything it needs to, has great power, and all the coverage a scarfer needs. It might not be the most threatening Pokemon in the tier, but I have yet to find anyone else that can do its job as well up in RU, and it has been even more amazing here.
If you are not going to scarf it, Swellow give major competition with its massive guts power and natural speed. But it lacks the pure power of Braviary, and thus is unable to revenge faster things like Scarfiary can. It also can't take a beating like Braviary.
Seriously people. Just try it. I don't want this awesome pokemon to get less use than it deserves.
Braviary is definitely a big threat, and honestly probably one of the best scarfers in the tier. I have yet to try it but since my dominant flying resist is Magneton (and I need it to check so many other things like Klinklang...) it really does a number to my team.
On another note I've actually been using Camerupt to some moderate success. It's been a fairly reliable check to some of the prominent Electric-types like Eelektross, Zebstrika, Emolga, and Magneton. It resists Electric/Fire coverage and then is neutral to HP Ice. Plus it can hit surprisingly hard, though it's hardcore walled by Slowking, though that wasn't really unexpected. It can also run enough speed to outrun min Spe Lanturn although I have no idea what other people run on Lanturn so I haven't really tried to stay in and Earth Power Lanturn. Maybe it'll come in handy someday.