Xpy, I can only speak for myself and my feelings about the Giants started about before today. They totally dominated both the Jets and Cowboys to wrap up the season. I realize neither are that good but the defense for the Giants were just dominate. Same thing today, that defensive front can absolutely take over the game when they get the momentum.
Add to that the best receiving core in the NFL and 2 big physical backs to ground and pound (even though they are the best in the league and pussies if you compare size to ability) and you have a pretty intimidating team. If Eli doesn't go full choke Giants are a solid value.
I'm not over-looking San Francisco, they are very solid on the defensive side and if their offense plays as well as it did yesterday then they have a legitimate chance.