Gamers. We win. Competition is healthy.
Not really though. The only thing competition really brings to video games is the need to buy 4 expensive platforms and tons of controllers / hdds / peripherals every generation to be able to play all games, or having to skip some games every generation because you cannot afford all platforms. I personally can't afford three 500 bucks consoles per generation + a 1500 bucks PC every six years... So no, competition is not healthy for gamers, it just makes us broke. Nobody wins in a world where you have to spend 2000+ dollars on hardware each console generation to play all exclusives. More cash spent on hardware means less cash to purchase actual games, meaning you're paying way more to overcome the barriers of entry to some platforms that you actually buy and encourage game devs making the games you love.
Personally, I always love generations where a single console wipes the floor with the other consoles, because it means I can buy a single 500 bucks console and have pretty much every single important title playable on it. Actually loved the situation the past few generations because you had Nintendo doing it's thing (and me not caring about their first party), MS releasing only a handful of exclusives I didn't care about and that were on PC anyway, meaning I only needed to buy a PS5 and keeping a half-decent PC around to play pretty much everything I wanted to. Heck switch could even be emulated for the few games I cared about, meaning I was missing out on pretty much gears and halo each generation and nothing else...
Besides, there will always be competition when it comes to individual games fighting for the content of your wallet, no need to have greedy publishers trying to sell you their crappy proprietary hardware just so you can play stuff you can't play anywhere else. Personally, I wish consoles would be gone at this point and we only had a single platform with all games published on it... I just don't want microsoft to get another monopoly like they did with PC...