Vegeta doesn't have as many transformations as Goku, but that's simply because the Prince of All Saiyans doesn't need them.
Anime transformations as we know them wouldn't exist without Dragon Ball Z, and these are the absolute strongest forms in DBZ.
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10 best-written Dragon Ball arcs, ranked

Dragon Ball has crafted a compelling and complex narrative over the course of four decades, but some of its sagas have better ...
The Dragon Ball character Launch seemed like she was going to play a prominent role in the anime, but one day she just ...
Akira Toriyama understood his characters better than anyone else, and the Dragon Ball manga's paneling and storytelling is frankly on another level.
Sony’s It Ends With Us adapted Colleen Hoover’s powerful story about domestic violence and a resilient woman, but drama between stars Blake Lively and Justin Baldoni behind the scenes and afterwards ...