I read "Best . ever." and I was already rolling my eyes. After watching I agree. It's hilarious, and well produced.

I'm a design lurker ( since I'm more of a developer ) but this question is one close to my heart so I thought I'd give my 2c.

Firstly I want to say that you've put together a pretty nice collection on UpDownLeftRight.

Here are some of my favourites, both in terms of visual design and game play. I've not included any "heavy" games, I tried to stick to mostly simple, and easy to pick up and learn games, with some fun inviting colours that would welcome new players into playing, because that's the best part about board games :)

Takenoko

Between the bright colors, the tile design and of course, the adorable Panda figurine. This game has simple-to-learn mechanics and appeals to many new players because of it's brightly colored palette.

Ticket to Ride - 10th Anniversary Ed.

Oh, this wonderful game. This is my favourite "gateway" game. It's so simple to teach, it takes me less than 5 minutes to explain, yet the hidden-points-reveal as well as competing over the same board is so well done, that it's always exciting, especially at the end when everyone starts revealing their cards.

I highlighted the 10th anniversary edition because it is incredibly gorgeous with the individual train details, as well as the massive board, and including the must-have 1910 expansion within the game was perfect.

Hanabi

We've all played many different card games, but this lovely game quite literally "flips" the cards-in-hand mechanic of all card games. It's a co-operative game designed by one of my favourite designers (Antoine Bauza - see also: 7 Wonders) and you're collectively trying to assemble a fireworks display, except... the player cannot see his own cards, as they hold it with the back facing them, and rely on clues from the other players to figure out which card to play.

Great fun, inexpensive, easy to transport, all in all, excellent game!