WordPress.org

Can I create a comparison table directly from my blog?

No you can only use comparison tables available on SocialCompare website. You can easily use existing comparison matrix available at SocialCompare. If you'd like to create your own table you can create a free account on SocialCompare.

Can I customize the design of the table?

Yes embedded tables are easily customizable, even if you are not the creator of the table. You can customize font-size, colors, available actions (sort/hide...)... You can find more info here: http://blog.socialcompare.com/2010/12/08/customize-the-embed-comparison-table/

SocialCompare.biz table can only use the default design of the pro account.