I didn't have that many issues with the Digital Event personally, it wasn't as good as the last two years but its hard to top Mario Kart and Smash.
My favourite anouncement was easily the new Mario & Luigi game, I love every single one of them and I did enjor Paper Mario and the thousand year door as well as Super Paper Mario (I haven't played the other two).
I hope to see Rosalina in the new Mario Tennis and Mario & Sonic, with 4 new Sonic characters, It seems likely we will get 4 of each, one for each class.
Makes me wonder what class they will be?
Jet is likely speeed
Rouge I think would be all round
Sticks as Skill maybe?
Leaving Zazz as Power
For Mario, I think it would be very awesome if Rosalina was a Power character, I've always thought that she would be skill, but thinking about it, She's a heavy character in the Mario Kart games knocking her weight around, and she's the second strongest hitter in Mario Golf.
That means
Diddy as Skill
Nabbit as Speed
Rosalina as Power
I was thinking Birdo as all round, but then I remembered she had been deconfirmed. If we're going to have another female around, I think possibilities include
Toadette (Would be weird without Toad though)
Wendy (Weird without other Koopalings, but we do have Zazz)
Pauline (Weird because she's stuck in mini hell)
Pom Pom (weird before Boom Boom)
Dixie,
Thats only if we get another female Mario.
Back to E3
Super Mario Maker looks stupidly fun, I love level creators, and I have made LOADS in both Brawl and Smash4 (I like to theme a stage around each character)
I'll probably do the same in Mario Maker, at least to the best of my abilities.
I really hope the Koopalings turn up though, it just seems wrong to have Bowser Jr but not the Koopalings. Even if they just follow their SMB3 ai or NSMBW first fight ai.
New Zelda looks alright but a little gimmicky
New Star Fox looks amazing, but I use offscreen TV a lot so it does lower its value for me.
New Metroid game needs A LOT more stuff added to it before I consider getting it, specifically something to actually make it Metroid. Where's Samus?
I don't about Animal Crossing, and that Party knockoff looks absolutely pathetic.
New Fire Emblem looks cool.
MUPPETS!
Wooly World we've seen plenty of.
I have no interest in Skylanders, but it does make me wonder about the possibility of Spyro in Smash.
Anything else? Did they reveal anything in the Tree House?