If we had a candidate tell us that he/she would teach a service course "if required" but otherwise would prefer not to, I doubt that person would get an offer. Departments want faculty who not enthusiastic about being good departmental citizens, not merely those who can be coerced into doing their share of service.
As for the argument that you should not agree to teach a course you're not able to teach, I agree completely, but I don't think that category should include intro or methods/stats. If you are a recent Ph.D. and try to tell me with a straight face that you are "unable" to teach those courses, I'm going to conclude that your training must have been pretty weak.
My advice instead would be to go into interviews with a positive attitude and project a willingness to be a good departmental citizen. When people ask, tell them what your preferred courses to teach would be, and don't mention your dreaded courses. If they ask specifically about a course you don't want to teach, say something like "it wouldn't be my first choice, but I'd be happy to teach it if that's what the department needs." That will get the message across with a less chance of you coming across as arrogant or unhelpful. Most schools want to recruit the strongest candidates, and they are motivated to make the department an attractive place for you to work. It may not even be an issue. But if it is, once you get the job, you can go out and get some funding so you can buy out of classes you don't want to teach.