"There's some splendor, but a whole lot of warfare in the grass, in A Bug's Life, the latest computer-generated insect film of the year. Did I ever think I'd ever say that sentence? And who ever thought we'd get two in one year?"This page is a list of similar works made during the same period of time. Sometimes one work intentionally copied another. Sometimes it's part of a wider trend in which that type of work became very popular all of sudden and others are made. Sometimes it's total coincidence: the creators just had the same idea. Which is the original and which is the imitation is not always completely clear; sometimes, however, it is painfully so. Sometimes, rather than home-brew a knock off, a company will license a foreign work, and adapt it to be more like its competitor. Occasionally, creators will be forced to war with one another when they simultaneously produce similar works which are subsequently released within a short time from each other. One thing to remember regarding Dueling Works is that Tropes Are Not Bad — while many Dueling Works appear to be blatant rip-offs, the competition between two shows (or simply the desire to set each other apart) often spurs each other to develop in quality. The result is a grateful television audience. See also Dueling Products for proof that this type of competition isn't limited to just works. See also The Mockbuster. Not to be confused with Dueling-Stars Movie. Again, just to be clear: The works have to be produced during the same time period, otherwise you've got either Follow the Leader or Serial Numbers Filed Off. Also see Fandom Rivalry.
- Anime and Manga
- Live-Action TV
- Web Original
- Western Animation
- One happening within Marvel's own works between All-New Wolverine and the 2015 Old Man Logan over which is the "rightful successor" to previous Logan-led Wolverine books. Points in All-New Wolverine's favor is the title, and the fact that Laura is actively using the Wolverine name and is marketed as Wolverine by Marvel. However a segment of the fanbase considers Old Man Logan the "real" Wolverine book since it stars a Logan, while citing its much more violent content.
- Halestorm and The Pretty Reckless, both being 2010s Hard Rock bands with female lead vocalists, get compared a lot, e.g. this video. The two groups toured together for a month in 2015 and from the sound of it their respective frontwomen Lzzy Hale and Taylor Momsen actually get along pretty well.
- Kanye West's 808s & Heartbreak and 50 Cent's Curtis were both released on the same day, September 11, 2007. Naturally, the battle between them was heavily hyped up in the music press, with Kanye and Fiddy regularly taunting and dissing one another in the lead-ups to the release of both albums. Of particular focus was that it was a clash between two different styles of Hip-Hop — 50 Cent was an icon of early '00s Glam Rap, while Kanye was known for more personal lyrics that spurned the influence of Gangsta Rap. The decisive victory of 808s & Heartbreak not only put 50 Cent's career on the skids, it is often regarded as the tipping point in the decline of glam rap as a whole.