It was interesting to look through this book on Frank Cho, and how similar Cho's work is to Budd Root's art, a lot of shared spirit. I've seen Budd Root over the years do collaborative pages with Frank Cho, and Cho has also done several variant covers for CAVEWOMAN issues.
Budd Root has also often mentioned Cho in editorial text pages in his books, they're friends and often cross paths at comics conventions in cities nationwide. They have a lot of crossover in their playful good girl art, as well as favoring dinosaurs and monsters in their stories and pin-up pages. Frank Cho's LIBERTY MEADOWS has some obvious shared themes and content to Budd Root's CAVEWOMAN titles and covers.
I guess you could describe them and several other comics artists such as Adam Hughes, Paul Smith, Arthur Adams, and the late Dave Stevens, as representing something of a "school" or a sub-genre of comics illustration. But Frank Cho is, I think, for whatever reason, more prominent and mainstream than Budd Root, though I see them as equally talented.