Do you prefer Black Ops to Modern Warfare 2?

I loved MW2, but that's possibly because that's the first online game I ever got into- it came out at roughly the same time I got broadband. It's taken awhile for me to get into Black Ops, but I'm slowly starting to like it, although it's frustrating because I've spent so much time on MW2 that not being as good on Black Ops is seriously annoying.