Only drivers from Asus are guaranteed to work on on an Asus laptop, because (in common with other laptop manufacturer's) the laptop uses proprietary hardware which requires customised drivers. Only the laptop manufacturer has these customised drivers. So "what's the best driver?" doesn't apply. There is only one driver that will work, and that's the driver from Asus.
Now, I've been to asus.com & asus uk & neither of them recognise Asus k52f as a valid model number. Please go here using your Acer laptop and click "Start" under "Model Automatic Detection, or alternatively enter the laptop's serial number in the right-hand box: http://support.asus.com/download/options.aspx?SLanguage=en&type=1