Lot's of flack going for the visuals, I think they're pretty good, lots of dense vegetation, more buildings so that Boston actually looks like a city, and not like DC when there was comparatively very few buildings, there is actually colour in this game too.
Also in terms of gameplay there are a lot of tweaks from the looks of it, it's hard to reinvent the gun, you shoot them they eventually die.
But if you look at the animations, they react to where they get hit really well, animations are for the most part smooth, the 3rd person turning still looks a little ugly and skatey they should look at some more TPS games to learn how to make a better third person experience (Mainly because that's my preferred perspective).
Bethesda games have never been pretty up close, but all the items in the world make up something pretty, lots of vistas and environmental impact.
Like I've been saying all year however, I feel that TW3 may cause me not to like this game quite as much as I'd like, but I am sure once I am 200 hours in I will have forgiven it's missteps, I'll judge it when it drops providing my poor internet can download 30GB's overnight.