Like "most"? Speak for yourself. The Cube's startup sound is probably my favourite out of all the ones discussed so far. Though in honesty I can't say I'd ever thought to rank them... they're all just in the way of actual gaming.
Let's get one thing straight I don't dislike the way they'd constructed the logo design it's just the sound they'd used for it thus the reason why I stated 'Looney Tunes'. Also FYI I wasn't the only one on this thread that disliked the GC startup boot, maybe I did over exaggerate when I stated 'like most' and for that I apologise (happy days)!
My text-tone is the DC boot up but think the Japanese Saturn is my fave, then the PSX, Neo Geo, then the DC and PS2. Not a fan of the 'Cubes boot myself but absolutely love the Wii's main menu background music.