Yeah, I'm pretty good against bots, too. It's pretty easy to develop a winning strategy against them, though. In most games all you have to do is send in a few large groups and you'll eventually win. :p
When it comes to humans, I blow. I'm not really interested in RTS games enough to get into all of their intricacies. I am very good when it comes to games that allow you to play cooperatively (i.e. two humans to an empire) because I'm good at city building/defending and resource management/gathering.