My old blog template was a little... pointy. Not a word you would normally use to describe a site's appearance, but it's fitting nevertheless. All of the corners poked out too much and looked unattractive.
The old template was also a little crammed. Two sidebars surrounding the posts was just too much stuff on one page. So I combined the sidebars and put them all on the right. This allowed me to have some gadgets be wider, and also cut down on margin waste.
I like the new look a lot more, what do you think?