Here is the latest table after the first 6000+ votes from last nights episodes. As you can see He's Our You is currently the 3rd lowest rated Episode from Season 5. The average marks still put Season 5 as the highest rated to date.
I've also added a total votes table below.
Season 3 Episode Average: 4.14
Season 4 Episode Average: 4.31
Season 5 Episode Average: 4.38 (to date)