I just got a new one and i got an LED LCD(backlight LED) one with an backlight LED not the linear panel ones because it makes better whites and blacks and true colors. better than incandescent backlight.
also use less power, and are just more crisp image and better viewing angles. This is the same technology apple uses in the Imac and their monitors.
for response time most monitors are 5ms and dont think it matters that much because it only varies by 1 or 2ms
i got this one because LED can be expensive and this is the cheapest one i could find and the reviews said it compares to a lot more expensive like NEC and AOC monitors.