NIP 1:2 Acend.
Added Astra
I've changed my mind!
I reckon we see Icebox and Split banned out.
Acend have a better track record on Bind. Their defensive halves are water-tight.
NiP look slightly better on Haven. They've only played it twice this month but haven't lost, pulling above average rwin% on both halves. Acend have played 6 but lost 3, their DEF halves looking strongest.
Ascent is anyone's map. NiP haven't shown a reliable defensive strategy yet but their attack is strong. Acend can defend the hell out of this map but don't look so clean on attack.
For me, the big decider is the team stats. This past month, Acend are just putting out better numbers than NiP. They've played twice as many games, which can't hurt. Their ACS is huge and their avr. K:D is around 1.3. They have a higher ADR and KPR, and they give up less first bloods.
So, seeing as Haven and Ascent are almost too close to call based on their playstyles, I'd have to give the overall advantage to Acend.