Well everyone has their preferences, which is why I'd like to see an option between the two different UI styles. What I've posted aren't meant to be finalized and judged as is, more like concept examples for actual graphic artists to work from. I'd love to see what they could come up with from scratch, where as I'm just messing with Photoshop.
As Elhoim said, if the UI scales for higher resolutions it will look like crap, if it doesn't scale and it's centered, it will look like the above Fallout UI. The Segmented UI is basically the same thing, but eh, segmented. Anyway, there's no way for the UI to not scale and fill the whole bottom part of the screen. (Unless you do a huge amount of work with questionable results)
And before you mention my PST UI, yes, I like how it fills the whole bottom part of the screen and yes, I've pulled some neat tricks with the dialog window which can now get much bigger (with some awesome help from
taplonaplo) and yes, it looks pretty fucking sweet (if I may say so...
)
BUT... It came up this way because I started from a fixed 1208x800 UI and then gradually added a shitload of things and moved to all-resolutions support. And frankly the UI is not prefect and has its share of weak points. If I did things again, I would have just centered everything, since it's the clever thing to do when you're working for multiple res support.