Some of these product I don't about, I think they are well known in Europe. However base on what I know Iiyama produce some of great monitor but If I would rank them as:
4 Viewsonic / HP / Iiyama seems nice foe a gamer with 2ms
6 the rest.
BENQ is my first choice because it has good review by the owners.
Iiyama seems nice foe a gamer with 2ms
BELINEA and sumsung seems good for color accuracy.
I base my ranking on the spec and what I know about the product. Others may have different knowledge.