First off, i think the styles are "equal".
I will explain why in a minute, i also think you should change the header, the colour scheme, saturated orange doesn't look good on any site.
Why i didn't "prefer" a theme.
Well, none of them are perfect, there are major things i don't like in each of them.
The sidebar looks far better on the right.
The font on the Scott theme looks better, more professional, it looks like no thought or consideration has being put into the design on the Dan one, when it comes to fonts.
Looks very messy. Although, i think Verdana, or Arial would be best suited.
The "story?" headers, i prefer the green colour (Dan), but dislike the Red, it looks like a default HTML red, and seems to just "come up", it's not taken from anywhere.
So, maybe have the green header, and replace the red with the same green. (Keep the grey text too.)
Not too keen on the bright blue links too, maybe make them a bit darker, or try making them darker and lowering the saturation on the colour.
Remember, i don't mean to be harsh, just trying to give improvements based on my opinions.
Good luck!
Adrian