Gamecube because it plays GBA, GBC, GB and GC games. That's a massive library of quality games to delve through. Dreamcast and PS4 are both powerful contenders, though. Especially Dreamcast because it is still getting new games in 2025 and beyond. A lot of people tend to overlook the DC library but it has just as many absolute bangers as PS4, NES, SNES, PS1, etc. 

So here's a list of kickass Dreamcast games for you guys to look up...

Capcom Vs SNK

Capcom Vs SNK 2

Fighting Vipers 2

Psyvariar

Guilty Gear X

Headhunter

Rez

Shadow Gangs

Shenmue

Shenmue 2

Spiderman

Street Fighter 3

Under Defeat

Zero Gunner 2

Border Down

Sega GT

Metropolis Street Racer

Rocketron

Ghost Blade

Bangai-O

Sturmwind

Xenocrisis

Andro Dunos

Andro Dunos 2

Xenocider

Last Blade 2

Fatal Fury Mark of the Wolves

Giga Wing 2

Gunbird

Mars Matrix

MvC

MvC2

Phantasy Star Online

Elemental Gimmick Gear

Outtrigger

Time Stalkers

Blue Stinger

Gundam Side Story

Maken X

Carrier

Project Justice

Cannon Spike

Tony Hawk 2

Crazy Taxi 2

Crazy Taxi 

Sould Calibur

Re-Volt

Dead or Alive 2

Zombie Revenge

Tech Romancer

Sonic Adventure

Sonic Adventure 2

Virtual On 2

Jet Grind Radio

Grandia 2

Confidential Mission

Code Veronica

Dynamite Cop

Power Stone

Power Stone 2

Chu Chu Rocket

Tokyo Xtreme Racer 2

Virtua Fighter 3tb

Hydro Thunder

Daytona USA

Legacy of Kain

Berserk Gut's Rage

Not everyone here has the PS4.  I personally would pick the PS4 it's my favorite Playstation console. The Gamecube was a fantastic console home of Resident Evil that generation, every game that was on both the Gamecube and PS2 looked better on the Gamecube. 

So all of a sudden graphics matters now. You can say the same with the PS4, almost every game that was on the Wii U, Xbox one and PS4 looked better on the PS4. GC had Resident Evil 4 it's nothing compared to PS4's dozens of great 3rd party games. PS4 also has just as many great 1st party games as the GC. Ratchet, GoW, Uncharted, Spiderman, Gran Turismo, bloodborne, Horizon, The last of us, Ghost of Tsushima are all highly rated 1st party games on PS4. GC library is very similar to the Wii U, both had some great 1st party games but the PS4 destroyed the Wii U. I have a feeling if someone makes a poll for PS4 vs Wii U the Wii U would win here

Yeah Ikaruga is often considered one of the best games of all time and one of the best in the genre and DC is full of great games and some of the all time best but keep living in an ignorant world. Gamecube only has about 30 more games than DC. 

Ikaruga is a small game and is nowhere near being one of the best ever outside its very niche genre (which is a genre I grew up with and loved, but I'm not so blind as to act like it's super relevant). It was also ported to GameCube only 3 months later, with an international release shortly after that (Dreamcast's was Japan exclusive). If Ikaruga is an "all-timer" you might as well claim a thousand other games are all-timers. It's neither significant enough nor a Dreamcast exclusive. All-timers are determined by the consensus, not you or me.

Dreamcast's original games rarely get mentioned in any all-time lists. I'm sorry if this strikes a nerve. GameCube's library of relevant original games is bigger, generally better received, better selling, and much more frequently mentioned in all relevant gaming sites, not just VGChartz. Power to you if you prefer Dreamcast, but I'm of the opinion that it was good but not great, and you don't have to agree with this. It had many great games, just nothing quite on the level of RE4 or Metroid Prime or many other games from that generation as far as the consensus goes.

I voted for Dreamcast, because of the innovation, unique identity and having some quite outstanding exclusives for the time. PS4 of course has an exceptional library and got support for an incredible amount of time.
GameCube to me felt like a poor competitor for PS2 and Xbox, it had some strong exclusives, but compared to some of Nintendo’s more successful consoles, it wasn’t that impressive. A lot of really disappointing games too. Still a good console though.
Series S/X just feels unnecessary at this point, everything it got is playable elsewhere, the price is uanacceptable, and physical releases are sparce. It doesn’t even fo anything new compared to Xbox One.
I might even put it below the Jaguar, which at least had a few interesting exclusives and in some aspects were technically impressive for its time.

I'm gonna choose the PS4 even though I didn't own one. My reasoning is that when I got a PS5 and I was able to play PS5 games along with all the games I missed out, I totally fell in love with the PS4 library.

Not just all of the great third parties (Witcher 3, XCOM2, Kingdom Come: Deliverance) but the exclusives were just firing in all cylinders. Heck, Ghost of Tsushima and TLOUII became some of my all-time favorites!

Highly unlikely, Wii U is significantly less well liked than the Gamecube.

I don't know why you're so worked up, it's not like the Gamecube is dominating the poll, it's quite close.

Why is it close? Objectively, the PS4 is a much better console. Some people here might say it's because they never owned a PS4 so they chose the GC but one would think more people here would own a PS4 since it nearly outsold the GC by 100 million but whatever 

When I have time I'll make a list comparing PS4 library to GC library. If you stick to good games and ignore Indies GC library is quite good compared to PS4. Also there's a lot of recency bias here. How many PS4 games will be considered classics in a decade?