As someone who has been in gaming since the early 1980s, Xbox has basically lost me entirely. OG Xbox was great (aside from a couple of minor quibbles, like having to buy optional DVD playback support). OG Xbox had a wealth of middle-budget exclusives that were so numerous, I think just about anybody would enjoy at least a few of them. According to this list, there were SEVENTY Xbox exclusives from 01-05 for OG Xbox :
https://en.wikipedia.org/wiki/List_of_Xbox_games
Personally, I found stuff like Phantom Dust, MechAssault, PGR, etc, to be quite good. Combined with usually great 3rd party ports, the system was a great (if bulky) companion to PS2 and GC, all offering great things in a great gen. VERY affordable systems, diverse libraries, tons of excellent titles. If you've never had an OG Xbox, I still recommend picking one up, the system and games are absolutely dirt cheap to buy, and still very enjoyable to this day.
360, Wii, and PS3 really disappointed me at first, for wildly different reasons. 360 launched without HDMI support, and was all kinds of flaky until the slims to be honest. 1st party releases weren't very compelling, and the systems were pretty expensive. 360 in 2005-2006 wasn't exactly lighting the world on fire imho. Then PS3 and $599 happened, and another slow-out-of-the-gate system in terms of library came, with even more expense. Wii had some great 1st party, but had potato graphics and 480p resolution. GC w/motion controls, which became heavily used and a tiring gimmick to many. The gen really didn't come to life until 2009ish for me, then things started to turn bad not long after for Wii and 360 especially, Wii output slowing to a trickle, and 360 going on a kinect bender and completing the de-evolution into the Halo/Gears/Forza box.
This latest batch of things like Gearhead being shuttered, Scalebound cancelled, games delayed/not getting firm dates, just makes it feel like Xbox is becoming an afterthought to MS leadership. Hell, in E3 2016 we were told about a system releasing well over a year out, but without a compelling story of why it should exist or why we should care. Then again, I'm not a fan of mid-gen refreshes from any company. I have zero interest in PS4P, Scorpio, or the goofy thing with the N3DS.
I might get an X1 again after the gen is over, and a stack of the total retail exclusives that I care about that aren't on PC to check out for a few days, it doesn't sound like that stack will be very high to be honest.