1) ACER18.5" - G195HQL Wide 800000 : 1
2) ACER19" - V193GB Square
3) Samsung - 18.5" 933 +50000:1
4) Samsung - 18.5" 94350000:1, DVI
5) LG 18.5" - 1943SBWide - 30000:16400
6) LG 18.5" - 1953TWide - 50000:1 - Dvi
Which has a better resolution and clarity ??