The Venus Embrace has five blades so you have less chance to cut yourself and it is supposed to give the closest shave compared to others with only four or three blades. Others have shave gel built in around the blades so you don't need separate shave gel or cream, but I find that the gel on these types don't last as long as the blades do so I find it as a waste of money and prefer the five bladed embrace razor.
The 5 blades give the best coverage, and make it easier and faster to shave. The Venus & Olay is the best when you have sensitive skin and don't like using a ton of shave cream. the Venus & Olay with 5 blades is the best bet by far.