IMO neither. Curved screens are gimmicky crap, however sadly it's the far better screen out of the two.

The Acre has a terrible viewing angle, wasn't so much of an issue for me since mine's sat on a swing arm, but if it was still on it's stand then URGH.
URGH.
Don't touch their TN screens with a stick (also applies to their LED monitors which have equally bad viewing angles). Unless like me you needed a replacement monitor and had your back against the wall time wise. -_-

Oh, and a response time of 6ms or lower is all you need for 144hz panels to avoid ghosting issues.