Yeah, when I was nine years old, it was "NES is better than Sega Master System!" and then people would fight about it. 1985. Then SNES was better than Genesis, or Genesis was better than SNES, and here's why... also here's why Nintendo is better than Sega or Sega rules over Nintendo.
Then it was Playstation versus XBOX versus Nintendo 64. Microsoft sucks, Nintendo sucks, Sony rules. Or any combination of the three companies either sucking or ruling the world.
PC versus Mac.
Laserdisc versus DVD.
Vinyl versus CD.
...These arguments over formats and game companies and such are very, very, very old. People think they've stumbled on something new these days, making YouTube videos about it and Instagramming and Snapchatting and streaming their "brand new" ideas on Twitch.
News flash: One is not innovative or edgy or even inherently entertaining by bashing one video game company over another. Both companies are clearly successful, despite social issues.
All these Blizzard vs. Square videos and Reddit threads and what-have-you... are just perpetuations of arguments nine-year-olds had forty years ago.
Both Blizzard and SE make great games enjoyed by millions of people. Back briefly to what I said earlier, Genesis is not "better" than SNES; they're just two different video game systems with hundreds and hundreds of great games each. Equally, "Blizzard" is not better or worse than "Square"; they're just two different video game companies with dozens of great games each.
If you were to make such a determination, it'd be subjective anyway; one cannot quantify "better" in terms of enjoyment of a game. If you want to talk profitability or innovations then that's an entirely different discussion.
I used to run a video game store in the nineties. I've seen people actually get in physical altercations over whether their Neo-Geo was better than Genesis because it "had more bits":
"Genesis has way more games!"
"Yeah, but Neo Geo has arcade ROMs in the carts, and has eight more bits than Genesis!"
"Genesis has Sonic!"
"Neo-Geo has Metal Gear!"
"Neo-Geo SUCKS!"
"Yeah? YOU SUCK!"
Slaps ensue. They did take it outside pretty quickly. I called the cops many, many times over the years for customer behavior, but that (weirdly enough) wasn't one of the times.
I get how divisive the issue is... I just wish we as humans would "evolve" out of bashing other people's subjective enjoyment of entertainment. Chocolate isn't "better" than vanilla, rock 'n roll isn't any "better" than house music, blue isn't "better" than green, and SE isn't "better" than Blizzard. Anywhere you wanna 'vice-versa' those, feel free.