I don't think the Xbone will get close to the PS4 in terms of sales, my point was more about as a consumer we're more likely to benefit from MS (or anyone) being in 2nd, as typically the console in 2nd place will need to push as many great games out as possible in order to stake any claim at all, and we can already see this happening, MS have a great line up for 2015 and beyond
Look at the Wii U even, it's already got more great games than the Wii, when your system is doing poorly you really need to push out great games