I think you missed the entire gist of what I was trying to say. Yes, if a gamer has a pc, x360 and x1, then they will go for the X1 version of Titanfall which will be the best one (I assume). The same if they are planning to get a next gen console and Titanfall is a game they MUST play. BUT if they really want to play titanfall but only have an x360 OR a PC, then do you think they will buy an X1 just to play the BEST version of the game? Of course they wont, the majority of gamers will just get the game on pc or x360. Only a small fraction would buy a console they werent already planning to buy just to play a single game, especially when they have the option of playing the game for cheaper elsewhere.
As for PCs, of course the number of pc gamers is smaller than console and yes the number of people getting and playing Titanfall will be much lower than on X360/X1. But if it comes to people choosing a pc version or buying a whole new console I bet a significant number do go for the pc version. I also dont know that the x1 version will be superior to the pc version (correct me if I am wrong).
@ Bolded: Yes I do believe people would purchase the X1 to play the game if the X1 is superior version over the 360. For the PC, if the X1 is even on par withthe PC version then I believe people would purchase the X1 instead of playing the PC version if they are console buyers. You make a statement that people are not thinking about purchasing a X1 would not change their mind if Titanfall deliver. I counter that opinion in that you have large people on the fence. Those people are waiting for the PS4 and the X1 to provide a must have game to purchase the system or enough games to justify the purchase. I know people who only purchase a 360 for COD or FIfa. In the end, its just an opinion and can only be proven when Titanfall release and we see if sells increase for the X1 if Titanfall delivers.