I think I must have stepped through a portal to opposite land, Garnett has things he hates about the 360 and CGI-Quality loves the 360... (I kid, of course).
Anyway:
1) For most games, can't you play online with a friend split screen with the other person being a guest? (I know for sure you can with Halo 3, not sure about other games though)
2) Not sure why they chose batteries either, probably to suck more money out of you? I think in the long run (assuming the 10 year plan and MS promise to stick with Sony till the end of this gen), it won't be such a bad thing (seeing as how once the battery or rechargeable pack dies for good, you'll be able to easily replace it. Can't say the same about the DS3 or Six-axis).
3) Don't own a 360 no more, so not an issue for me. It's not too loud on a friends elite though
5) like scottie, would rather cheaper XBL then free points.
8) I'd say a reduction in the size of the power adapter is more necessary, the 360 isn't really massive (relative to the PS2 phat, the original xbox and the PS3).
9) I'm not sure how much I'm getting out of blu-ray, really. Aside from the games (which wouldn't work seeing as how not everyone would get a blu-ray add-on), blu-ray movies don't offer too much over the standard dvd in terms of content, it's just that explosions look better on blu-ray (assuming it's an action movie).
EDIT: Forgot to add the things I dislike about the 360:
1) No wifi compability for free. I ended up spending $100 on the adapter, which is ridiculous.
2) Lacklustre JRPG's. I sold my 360 before LO and ToV (so take that into account). After 2 years with the xbox, I can't believe they didn't have anything better than or even remotely close to Eternal Sonata on the platform (which was easily the best JRPG this gen at that point on any home console).
