Which blogging software is better... b2evolution or wordpress?

In your guys' opinions, which blogging software is better? Wordpress or b2evolution. Mine right now is b2evolution but I can't figure out how to build the layouts that I want, and it's just... generally not as flexible. But to move it to wordpress I'm going to have to basically forget every post I've ever made on my b2evolution (which is about 62 pages worth of posts). So in your guys' opinions (which I really need) which is

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