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It would be nice to be able to see how your compare to the top ten in the categories. 

e.g. Blocks crafted
List the top 10
then you at XXX position
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Thanks for this suggestion, it is exactly our plan! Eventually you'll be able to see your own ranking compared to the existing top 10. This is a feature we have got planned but it isn't likely to be released until we've done several other things but it will definitely come eventually.

For now you can see most of your statistics by checking your client Minecraft statistics while on the server. And then for things such as McMMO you can see using /mcstats. However we're aware you can't compare rankings. But it will be coming to the site eventually.