Yes, you are right, the PS3 was never outsold (on a yearly basis) by the xbox 360, this reminds me an argument I had with an "avid" 360 fan a while ago, he kept telling me that the 360 somehow "won"... then I asked him how come the following was true (and easily verifiable):
1 - The XB360 sold more or less 5 million conoles in its first year... great
2 - The PS3 then (around 2012) had almost the same number of units sold
3 - Multi platform titles sold about the same on both (with some series doing better on one, some doing better on the other obviously... still)
How could the PS3 be outsold on a constant basis if they catched up to a 5+ million units deficit 6 years after it was launched...
We never discussed console sales again!
The XB1 has not been in front in sales, unless you only look at some very specific territories, but this remains a local thing, globally PS4 is still largely on top and it may very well regain momentum in the US and UK... who knows? MS are very agressive in their strategy...