I don't think anyone should feel like they owe some sort of allegiance to a console manufacturer, I always switched brands as well as black and forth between console and PC gaming depending on what seemed more interesting to me at the time (however I always liked the "politics" / debate side of gaming and arguing over the merits of consoles or PC hardware gets me interested all the time... I have to do it online because, well my friends don't care that much for these things).
Anyway, for me it went like this (note that I often came back to get the concurrent console years later to try the games on it and often liked it more than the favorite of the time in retrospect, the exception being the dreamcast, it's the best console of its time, bar none).
NES
TG-16 + Sega Genesis (CD)
PSX
N64
Sega Dreamcast
then mostly PC from 1999 to 2010, however I had the following machines in that period:
og XBOX
Game Cube
PS3
Ouya
PS4
That's a lot of consoles... some over lapped others, some did not get much play time (the OG xbox and game cube were never used that much, I don't think I finished ANY games on either, same goes for the N64).
Ouya is an oddity, because I mostly play emulators on it, as I am too lazy to plug my old consoles when I want to play them and I don't want to damage them (I have much more than what's on the list up there).
The machines I can say I was very attached to at the time were: the 8-bit NES, PSX, Sega Genesis, Dreamcast... maybe the PS3/4
However if the xbox1 would have been able to hold a candle to the ps4 on a technical level, I may have been tempted to look on the other side, however like you, the Sony exclusives have been a very strong factor in my console selection (I got the PS3 when wipeout HD came out... then went on with the big titles everybody mentions + god of war 3, did not play much 3rd party games as I had a decent PC most of the time).
