Definitely agree that New Vegas is the best Fallout game. It might be my favorite game of all time. It's up there, for sure.

Regarding dark side or renegade runs, I want to force myself out of my comfort zone because I've seen some really interesting narrative paths you can take when going the evil route. Same thing with intelligence. I always invest a lot of points into intelligence in RPGs, but I've seen hilarious dialogue options in Fallout games with low intelligence. Could be fun to be a dumb melee-build brute rampaging through the Wasteland lol