Something I've noticed is that a number of Nintendo's biggest games suffered from being rushed for the Gamecube more than in other generations.

Smash Bros. Melee may have suffered the least of the games that were rushed thanks to Sakurai working an inhuman schedule for a year, but it was still a rushed game that resulted in characters like Snake not being able to be included and the issue of clone characters.

Super Mario Sunshine was developed in basically a year and a half, which is short for a 3D Mario game.  And the final product really shows this rushed development.  It cut the framrate from 60 to 30 FPS between E3 and release.  It has fewer levels than any other 3d Mario game.  It's camera system is broken.  It's repetitive as heck with the blue coins and having to chase down Shadow Mario around 15 times just to complete the story.

Wind Waker notoriously had to cut 2 entire dungeons because there wasn't enough time and replaced them with the awful triforce hunt.

These are 3 of Nintendo's absolute biggest franchises, and other than the NSMB series, I don't think Nintendo rushed any mainline games in those series before or since.  I wonder what it was about this period that had Nintendo releasing such major titles without taking the time to truly complete development on them when they didn't do that for the NES, SNES, N64, Wii, Wii U, or Switch.  Maybe other games were rushed, like Mario Tennis Aces, but not mainline Mario and Zelda.

Yeah I've always felt Gamecube was Nintendo's weakest console.

The hardware was superb; small, powerful, cheap, reliable. But the software largely failed to measure up to their usual standards. Stuff like Mario Sunshine, Wind Waker, and Starfox Adventures were all massive disappointments to me coming off the N64. 

Sure, there were some gems, like Metroid Prime 1 & 2, Twilight Princess, F-Zero GX, and RE4, but on the whole it had fewer of them than other Nintendo consoles.

When the GameCube was in development, Nintendo was so confident in it that they expected the system to be getting PS2 levels of third party support. That included exclusives. This was because the GameCube was superior to the PS2 in almost every aspect. The only thing it couldn't do was play DVD's. At the time, Nintendo didn't think that was such a big deal. They had made deals with Capcom to have the Resident Evil series be exclusive to GameCube and to create several other exclusive games. Sega had gone third party and signed up to develop for GameCube. Many third parties who didn't support the N64 decided to support the GameCube. Aside from third party support, Nintendo had partnerships with several western studios to provide exclusive games. This included Rare, Silicon Knights, Left Field Productions, Factor 5 and Retro Studios. On paper, the GameCube sounded like it was going to be the best Nintendo console ever.

When the GameCube launched, the Nintendo exclusives that came out that holiday weren't the most mind-blowing games, but they were high in quality. The third party support was there too. Then after that, everything started to fall apart. People thought it was a kids' system and opted for the more adult Xbox and PS2. Those falling sales made third parties nervous and third party support started dropping and had mostly collapsed by mid 2003. The games Capcom had promised were delayed. One of them was cancelled. Nintendo's second party coalition collapsed. Left Field Productions bought back Nintendo's share of the company and went third party. Rare was bought out by Microsoft. Silicon Knights couldn't deliver much after Eternal Darkness. While Retro Studios was bought out by Nintendo and delivered the Metroid Prime games, the four or five other games that were in development were cancelled.

The reason I bring all this up is because I think it had a direct impact on Nintendo's own games. They expected the third party support to be there. They expected the second party exclusives to be there. When they weren't there, that's when Nintendo's own games were getting rushed out the door. They weren't terrible, but they definitely weren't what they could have been. This same situation would later occur with the Wii U except with the Wii U, Nintendo took the risky step of not releasing games until they were truly done.

Well. I don't disagree. Out of all of Nintendo's platforms... I found the Gamecube to have the least amount of games that tickle my jimmies.
With the exception of the Wii. (Ironic considering they are based on the same internal hardware concepts.)

But the great thing is, they learned from their mistakes somewhat.

MK8 was pretty rushed actually, the terrible battle mode and the late introduction of the 200cc mode which I think should have been available from the beginning demonstrates that.

For the rest I agree, Pikmin 3, BoTW, Tropical Freeze, Wii Fit and many of Nintendo's first party launch games ended being released too late.

Somewhat? That doesn't sound so great. Sounds like I might need to connect a bunch of wires from my console to my cellphone and still not be able to message you directly over an online network. I don't even care. It's so bad. It deserves to be savaged more than it is.

No need for a Nintendo console once Playstation was created outside a few gems.

Lol, that damn triforce quest! Pretty much a flawless game and they throw that in lol. 

Lol ridiculous statement. 

Unless you prefer the hardware and software of Nintendo systems.

I disagree completely. Some things may have been sloppy (The blue coins in Sunshine etc.), but most games on the system were great for their time and are still great today. It was a big step up from the N64, which provided next to nothing that actually interested me.