Well i'm not focusing just on latency, but things like spatial uniformity, delta tracking, contrast stability, dynamics, overdrive, video noise, viewing angle etc as well..
Anyway most 17" LCDs i've come across use the old style TN panels which fall significantly behind the benchmarks of MVA or (S)IPS panels.
Infact i'm not aware of any 17" panels that use overdrive, if anyone knows any i'd be interested.