Damn. I'm definitely warming to this phone after the initial disappointment. White model seems quite nice looking actually, it's just the material choice that's a bit disappointing. Considering that i'm using the first Galaxy S, this would be a huge upgrade for me.
I'm not even in a TW hate camp as it has pretty much just improved upon the stock os in 2.3 android version. New TW looks pretty nice. A lot more like ICS than Sense which does not look like ICS at all. I've also been pretty happy about the support that the first GS has gotten in terms of updates. I think it originally shipped with 2.1 and has been upgraded all the way to latest 2.3.x. They also brought TW in line with GS2 which is nice. I can't really expect them to upgrade it to ICS since the specs are kind of low.
One X is definitely better looking device, but the international version has Tegra 3 draining the battery so that is kind of a bummer hardware wise. I would much prefer the improved battery life of a US version. SGS3 cheapo build is somewhat redeemed by having microSD slot and replaceable battery. PenTile screen is a bit of a unknown for me since i have never seen one live, so i definitely need to test the device on store before buying.