We travelled to London a couple of weeks ago and my son and I attended the Fulham/Forest game. While the new Riverside Stand is still closed, it really looks like it will be a great place to see a game.
It was my first time attending a game at Craven Cottage and it was a really fun experience, my son had a blast.
We also attended a Leyton Orient game a couple days prior. It's amazing what a great match day atmosphere you get for about £10 per person.