I understand your position Lady TT. 
Having a slight or even greater prejudice or bias is pretty normal for fans in any sport, after all the word "fans" comes from the word "fanatic", and it's almost expected that one's views would be slanted in a certain direction. As long as those points of view can be expressed without demeaning or insulting other points of view, then perhaps a reasonable discussion might take place. 
But it is also acceptable to say nothing on the matter.
I for one, though, would be eager to hear your or any other reasonable opinion on the subject in this topic, as you said, thought provoking.
It doesn't only have to pertain to the poll question. That's just the "candy", so-to-speak. There are many things that can be discussed in this topic. For example, the different players styles, and their natural weaknesses Or, to what extent did the players on the list try to accomplish the feat? Early on, it may not have even been thought of as a feat worth sacrificing other things. Even the players that accomplished it can be brought into question. Were they fortunate to have completed a career slam? Or was it just a product of their game and overall ability?
Respectfully,
masterclass
Agreed, and I actually did go on to answer the question after giving it a bit of thought. Of course, we all have biases and tend to lean towards some people more than others, but that's expected if you ask me.
I couldn't agree more about discussion. It means hearing other people's point of view. People who demean others are immature. Why can't someone have an opinion that differs from your own? I've never understood that.
Since we can't predict the future, or what will happen the rest of Nadal and Nole's career, I think Nole will get it. The pressure of Nadal alone being the one to stop Nole will eventually create too much pressure on Nadal. I know it would if it was me.
But, they both great players and everyone gets what they have earned.