I certainly understand where you are coming from. Personally I prefer a subordinate to a submissive. I don't want to get into slave/sub definitions here but I think it's generally accepted that the slave is 24/7 and has no rights whereas the sub can have limits and parameters within which to serve.
But to add a different dimension to the post, I would think an element to consider is how pleasure is derived. The submissive, in theory, should derive pleasure from the master getting pleasure. So the question is, if you were ordered to do something that you do not like but your master/mistress liked intensely would that turn you on, would you get pleasure from doing it.
This is one reason why I prefer a subordinate. For me the sub's pleasure is a component in my pleasure. If a sub simply says she likes what I like, well that ain't for me. There is a great scene in the Eddie Murphy movie Coming to America where his arranged bride answer every question about her likes with "I like whatever you like". Would drive me nuts just like it did Eddie Murphy.