Wright on 27 October 2014
New Vegas, probably. Loved it from beginning to end, if, at times, it was kinda rocky (especially with how poorly optimized it was). I've also clocked like 400 hours on it.
But all fallouts are brilliant in my eyes. Played 1, 2, 3 , NV and Tactics, though I've only beaten 1, 3 and NW.