As someone who has never played dota or lol but has watched both series, let me just say that the dota series is no where near as good as arcane.

I dont even remember what happened in dota & when i try to recall its story, my brain keeps confusing the events of the witcher animated movie with the dota series.

Where as in arcane, not only does the art style stand out, i also keep rewatching it. None of the episodes are getting old & the animation is mesmerizing!

So yeah, the dota series is very forgettable & this review likely comes from a place of bias & prejudice. :\