Just looking at a comparison the 247H has LED backlight and a higher contrast ratio. Less power consumption, .6" more screen. Beyond that if you read the reviews the only difference is on the 247H there are more complainers over nothing to do with the quality of the monitor so I'd say the only disadvantage is its a little more expensive but if thats not an issue then its a no brainer and get the 247H
Other than the one being LED and using a little less power, it doesn't look like there is much difference between them. I'd go with the VH236H from Newegg, only because it's $149.99 after rebate right now.
well go for asus ve24h7 led it have good contrast ratio and give better picture quality buy the two of them