I've been playing all games in their respective order for almost a year, so I have a card for each game. I have only three cards on my profile, though, so I'll share just them:
My dream team is made of, how surprising, my top six Pokemon. Togekiss is the most notable member for me, since my attitude for the Togepi line has changed from pure hate to absolute love over the past years.
As a Ghost-type lover, this would be my mono-type team.
And finally, this my team from the best playthourgh I've ever had, of Pokemon Crystal. It was the first time I didn't pick my team based on strengh, but rather on how much I love them - which made Karen's words after beating her much more meaningful, and made this party overall much more precious.
Apart from Lapras (which you can only catch after getting Surf), the entire party was also obtained early on the game, so I had plenty of time to bond with them.
Fun fact: the shiny Clefable is from the egg you get from the day care couple. She was also my first shiny ever.