Map Pool for FNC vs BLG?

Just had a brief thought about this. What's the best map pool for FNC to try and get in the opening Champions match? I'd argue that it's pretty likely for this to be an easy match, but coming into it what's the thought process? Going for maps that they know to ensure their protocols are "stable", or try to play the maps they're not so good on to see where they need some patching up?

I think this is also a good time for FNC to throw in Abyss, to see how solid of a start they have and whether they'd want to pick it for the upcoming matches after. Personally I feel like Haven would also be a good practice, due to the Yoru + Iso combo and Hiro playing Cypher, additionally I feel like the "newer" comps have favored FNC more than the traditional maps like Ascent. What do you guys think?