The posted link explains well the difference between the 2 cameras. I recently had to decide between them and choose the 'e'. My reasoning was the price difference locally wasn't that great and the retailer was throwing in some freebees that made the price even closer.
The 'e' will resolve ever slightly more detail, but more important to me is the cancelling out of the low pass filter means you start with an image that does not need capture sharpening. This can really be beneficial shooting at higher ISO where additional sharpening can aggravate noise.