If we just get a metroid Wii U tease and a bit zelda Wii U information (despite what they said) than its already best E3

It will only be a good E3 if Zelda or Metroid shows up

Let's put it this way: I think Ubisoft can win the E3 if they show Watch Dogs 2.

2013 is the best E3 ever.

Best E3 was 3DS prison Girls, Donkey Kong Country Sequel, and Kid Icarus. All in the same conference I believe.

And I also believe new hardware years are best E3 years. Oculus 3D Goggle Vision whatever this year will have to do something to impress the person at home, remembering that the 3DS also had this same challenge (but it was atleast at a time right after Avatar had released). Im not saying 3D is unexciting, im saying it will have to be brilliant in gameplay in some way. 

I expect great things from small companies,hopefully some more japanese game anouncesments and indie games physical releases.

Short answer: no.

Long answer: no, because most of the games that I hear people getting excited about just look like slightly shinier sequels or slightly prettier versions of ideas we've already seen. Unless there's a particularly big surprise (like Splatoon last year), this doesn't look like it will be anything special.

MSFT E3 will be great

I´m expecting a great E3 for Microsoft, a very good one for Nintendo, and a very lame one for Sony. We´ll see.

Without Parasite Eve or TLG there is no hope for a good E3.