Cards like Thundermaw Hellkite are fantastic threats too, and great finishers, but they rarely do the whole job, they rely on other cards having done a lot of prior work
He's a top commander for those still learning how to play Magic The Gathering's most popular format, since you can experiment to your heart's content, and it's hard to go too wrong
Knight of the White Orchid was the gold standard for white mana ramp for a long time, and it has only recently had challenges from cards like Loyal Warhound and Cartogropher's Hawk
As aggravating as this is for fans of the original books, they should, perhaps, let it slide
Rose Tyler + The Tenth Doctor I could go very deep into the doctor and doctors companion cards, but this pairing is by far the most common, and one of the strongest