As much as I agree with Dyna, I agree with JG too. Something about FO3 grabbed me more than NV.
The mechanics in NV were much better, but I was
really put off by encountering the same bugs as FO3 and Oblivion. I started with a bad attitude because of that. I had to redo the tutorial several times because I clipped through rocks or into the ground. Within a minute of finally finishing the gekko killing section I encountered my first cazador, which one-shotted me. I hadn't saved
On a different note, I've been playing
Delver. Still can't finish it.