That one with the Dragons and the viking dudes. On one hand, you have a game by the people who made Bioshock, which really wasn't such a great game gameplay-wise (or even story-wise, come to think of it), it just had atmosphere. For the first 30 minutes. And Andrew Ryan. And would you kindly not forget about AtlasFONTAINE either. Then they made Bioshock 2. Gameplay a bit better, atmosphere all gone, story a bit better, and a cool ending. Yay.
I really fucking wish Irrational Games went back and made Freedom Force 2 or whatever the fuck they'd call it now.
Back to my second sentence's beginning, on the other hand, you got a game by the peoples that made Morrowind, Oblivion and Fallout 3. Expectations? Bad writing, avarage main plot, lots of sidequests (some of which are pretty fucking great) and some craaaaazy good mods. (Morrowind was better in the writing and plot section, but that was a long time ago, and Bethesda obviously changed since then)
I'll go with Skyrim, because I expect Infinite to be about 10 hours long at best, while Skyrim will probably have some lasting appeal. Unless it's going to be shit. Which is entirely possible judging from the trailers. They just... don't really tell me anything about the game other than the location.