User blog comment:B214/General Discussion/@comment-26345952-20170412001621/@comment-10330822-20170412003627

I find it amusing that they didn't list the top 3 in that list in the description, but then spoiled it by saying that the Blue-Eyes White Dragon, Igneel, and Shenron would be talking about, and they weren't in the first 7. XD

To be fair WatchMojo is pretty bad. They don't quite seem to understand the difference between words like epic, fan-favorite, or iconic.

First, the Blue-Eyes was not that epic, it was iconic, and it was by no means even the most epic dragon in Yu-Gi-Oh, both Slifer and the Winged Dragon of Ra were far more epic. In fact, after the first season, the Blue-Eyes becomes notably less impressive.

Likewise, Shenron has been significantly bitch-tiered by Super Shenron of Dragon Ball Super. That's a version of Shenron that is the size of the freaking universe and it swallowed a planet as they were summoning it. Not to mention they've made Shenron into something of a joke in recent episodes. No, Shenron is the most iconic dragon in anime, not the most epic.

As for Ddraig, he was barely on that list, and honestly, Issei himself is more epic than Ddraig is, and Issei is a dragon by himself. XD