But I am not too worried about the discrepancies with the two polls concerning Cruz and Paul this far out. It is interesting that both give Christie the lead. CNN polled 950 RV with an error margin of plus or minus 3 points, PPP polled 1,316 RV with an error margin of plus or minus 2.7%. So both polls are not that far off from each other if you factor in the plus or minus error margins. Cruz could actually be at 42% in the CNN poll where PPP has him at 41 and he could be at 39% in the PPP poll with the margin error factored. Pretty close.
This is why I like the way RCP averages all the polls out together. They have 14 polls factored in when RCP does the Approval ratings and 11 when they do their favor/against in health care. This eliminate the wild swings and the margin errors pretty much. One poll can be way off, but when you average 5 or 6 or more, they come pretty close to the money.
Using RCP polls for December, 4 of them Christie leads Clinton by 0.7%, Clinton leads Cruz by 15 points and Clinton leads Paul by 10 points. I would put more stock in the averages I just listed instead of any single poll.