I am going to have to agree with cow on this one. While Skyrim is fun and enjoyable at first after a while it becomes dull and boring when the quests are running thin and they become even more non-exciting. Somewhere near the end of the game while I was playing my Two-Handed warrior I literally did not take damage and I killed everything in one swing. I had insane amounts of armor because of my heavily worked on heavily crafted and heavily enchanted armor (of the Daedric origin.) One of the main things I don't like about skyrim is the lack of choice in character skills, being limited to Thief, Warrior, and Mage is very boring even though there are some area's in them that are quite... Other worldy ( http://www.youtube.com/watch?v=uhBiNx749Zw )... One more thing is that while exploring you will always find yourself in either a plains or a forest which is very dull.

Fallout on the other hand has quests that are extremely fun and exciting and never really bore you even on the second playthrough. One thing about weapons in Fallout is that you either have a high powered weapon or a lot of ammo, not both which can and will balance out the game. Fallout gives you a lot of choices that your character can take unlike in Skyrim if you take time to think you can come up with almost anything that you want to fight as in Fallout. On this I agree with cow that in your exploration of the environment you can find almost anything and because of the good graphics it is pretty good eye candy when you stand atop a mountain to look down upon Vegas.

Fallout is the way to go in my opinion.