My experience with Fallout on XB1 wasn't bad, it crashed all of twice, which doesn't bother me that much, because 2 crashes in 200hrs compared to Fallout NV or Fallout 3 with crashes almost hourly on any platform, significantly higher crash rate on PS3 and PC. Potentially lower on PC if you have the right patches and mods installed to prevent the crashes. Higher again if you have any mods installed that aren't specifically existent to fix crash issues. I never noticed any frame rate dips or stuttering on XB1, and I don't regret purchasing it for XB1.
I do recall the forced installs on PS3 being frustrating because you literally can't do anything while it's installing a game, at least on the new consoles you can load up another game or Netflix or something to kill time.
I don't know if it's because I'm a hoarder or because I genuinely care about media capabilities, but my PS3 hasn't seen much of any use since purchase other than media capabilities, if the 360 played blurays I probably wouldn't have purchased a ps3.
All that being said, the number of hours I've put into my XB1 dwarfs the shit out of the hours I've played on PS4.
PS4 titles I bought and played:
WatchDogs (Picked this platform because of the exclusive missions)
Need for Speed Rivals (I actually bought this for both platforms for some reason, but picked PS4 over XB1 because it launched exclusively for PS4 first)
Metal Gear Solid Phantom Pain (probably put in over 100 hours)
inFamous Second Son (Relatively short game, at least felt shorter than the previous installments)
XB1 titles I bought and played:
Fallout 4 (well over 100 hours)
Rise of the Tomb Raider (not sure how many hours, but it is a great game, definitely worth the purchase)
Forza Horizon 2 (I put a lot of hours into this game and I'm still nowhere near 100%)
Rare Replay (obvious must have)
Dead Rising 3 (this game is worlds above the first title in the series, the only other DR game I've played. 1 of 2 games I think sold people on the system)
Sunset Overdrive (Really fun silly Infamous type game. The other game that I think sold people on the system)
Dragon Age Inquisition (Right Trigger Simulator 2014)
Far Cry 4 (I don't know what to say about this game, it's been too long, it was fun and I think I may have 100% complete the game)
Wolfenstein The New Order (This game surprised me with how good it was, I even went back and played it multiple times, which is super uncommon for me)
Ryse: Son of Rome (Pretty decent game, I wouldn't pay much for it because it's short, but it's worth a playthrough, definitely not a system seller)
Mind you, most of those XB1 games weren't exclusives. But between Infamous Second Son and Sunset Overdrive/Dead Rising 3/Rise of the Tomb Raider/Forza Horizon 2, XB1 was my personal choice for exclusives. Had all 3 third party titles there been non-exclusive (i.e. Infamous Second Son V. Forza Horizon 2), I'd probably pick PS4. In terms of exclusive titles, nothing really interests me PS4 wise, but I do tend to lean PS4 for multiplatform titles.