I don't understand why people are cheerleading Microsoft's high sales.
Because more people have come to current gen which will thus hopefully help further push less cross gen games.
They got there the same way they always do: vacant library all year until the holidays, and then end-load it with marketing, bundles, and a few exclusives.
Vacant library? Titanfall doesn't count?
This behavior was a little more bearable later in the 360's life when 360 was getting superior multiplats, a ton of indie exclusives, and had a massive library. None of those aspects apply to the Xbox One, yet they're still using the same methodology.
Holiday season has always been bigger than Q1 for video gaming/game releases as a whole. It's nothing new. The same was true of the 360's early years.
If 2015 is a repeat of 2014 between the X1 and PS4 (i.e. PS4 has a steady stream of games throughout the year but X1 does not) that would be sad. If Holiday 2015 is a repeat of 2014 (i.e. Microsoft gets great sales due to steep price cuts, bundling, and advertising) that would also be sad because Microsoft will likely continue that behavior.
I agree that early 2015 seems a bit slow for the system in terms of huge releases but early 2014 wasn't that way thanks to Titanfall alone. Overall, the Holiday season is always more packed than Q1. The "behavior" will continue simply because it works for seeing huge sales alongside the time of year in which people buy games & games consoles the most. Some years may see 1 or 2 big "AAA" exclusives during the first half of the year but 3 or more (which is usually the case around Holiday time)? Yeah, highly doubt that will ever happen.