This thread has the potential to be closed because it has a "vs" flavor to it but since the door has been left wide open well here's my two cents.
Frankly, I find all this immensely silly. Who cares really from a consumer stand point if a game does financially better than another? This issue SHOULD matter mostly to developers/publishers who really need to know where they are standing within not only other games in the industry but other games in their own company. Furthermore, the media score is quite misleading because a game that has a 95% score doesn't mean the game is necessarily good(or left the buyer satisfied). Look at me. I bought Skyrim; I was part of that great score that Skyrim has, but did I like the game? HELL NO. I was terribly disappointed with Skyrim and I never finished it.
Nevertheless, it is nice to hear the level of "success" a game has achieved but to put our fan boxing gloves to argue the matter like if we have something to gain from it all is truly ridiculous - unless you're a die-hard fan who wants to see your game destroy everyone's out of the water.
I personally think FO4 will do great, better than Skyrim. But if it doesn't, I highly doubt FO fans would mind at all if they are enjoying the game tremendously. I think by the looks of the videos we have seen, FO4 looks as the most advanced Beth game so far thanks to their on-going understanding of the Creation Engine. Not to mention that for a TES player as myself, what we'll see in FO4 is a good glimpse of what to expect from TES6.