Cerebralbore101 said:

The following info may not be entirely correct, but it is about as close as I'm going to get without downloading a bunch of emulator files. If somebody could post official file sizes from an emulator site, I'd appreciate it. For now I'll just serve this up as a mostly correct example. 

3.27 GB - Arc The Lad Twilight of the Spirits
2.06 GB - Atelier Iris 3
2.46 GB - Devil may Cry 1
4.08 GB - Devil may Cry 3 SE
3.89 GB - Dragon Quest VIII
1.80 GB - Dynasty Warriors 3
4.19 GB - Final Fantasy X
3.70 GB - Final Fantasy X-2
3.81 GB - Guilty gear Isuka
2.83 GB - Kingdom Hearts
3.67 GB - Kingdom Hearts II
4.30 GB - Metal Gear Solid 2 
4.22 GB - Metal Gear Solid 3 
4.28 GB - Radiata Stories
3.13 GB - Rogue Galaxy
2.94 GB - SMT Devil Summoner RK vs SA
4.00 GB - Suikoden 3
4.06 GB - Suikoden 4
4.19 GB - Suikoden 5
4.33 GB - Valkyrie Profile 2
2.49 GB - Wild ARMs 3
4.15 GB - Wild ARMs 4
4.03 GB - Wild ARMs 5
3.96 GB - Xenosaga I

Xbox missed out on so many of the same games, because Xbox pretty much didn't exist in Japan, and only sold something like 25 million worldwide. 

Gamecube's mini disk sizes had another effect on games though. People bought a PS2 because it could play DVDs. The mini-disk made it pretty much impossible to play DVDs on GC. That in turn hurt GC sales, which hurt 3rd party support. Had the GC sold 40 million instead it might have gotten more of those 3rd party PS2 exclusives. 

Just something you should know take game sizes on PS2 with a pinch of salt for example the are multiplatform titles like Timesplitters which where bigger in size on PS2 despite not taking up a lot of space GC we also have cases like GTA3 which was a gig or so on PS2 despite only taking up 500 or so MB on PC.