Yeah its personal preference. I know that a lot players love the campy 2-3 lane maps where it's very hard to flank effectively and where units like MGs, snipers and elefant are super easy to use.
I personally prefer the bigger maps like vaux or moscow where flanking is actually part of the game.
do you want to suggest that I'm on of these campy people?
(i'm not)
but you can actually flank on smaller 3 lane maps...it just takes more nuanced timing and, frankly, a lot of smoke in many scenarios
i really enjoy moscow too...but something like vaux, which I consider to be bigger than moscow, is just too large, mainly because of the large distances that infantry need to cover from base to get to the battlefield, which often has resulted in annoyingly sluggish gameplay in my experience
liernaux doesn't even need to be discussed, why is it still in the map pool?