One of the best Vegas scores and odds contests this week in football is the clash between Cowboys vs. Cardinals for Christmas night.

The current Vegas point spread is Dallas -7 to 7.5 with varying juice with a total of 45 in most shops, but 45.5 in some.

The best sports picks experts use different key handicapping numbers than the square player. Here is a preview of that game from a handicapping standpoint.

In comparing yards per rush on offense, the superiority from a statistical standpoint goes to the Arizona Cardinals by .4.

Passing yards per completion is another gauge utilized by bettors. The advantage is possessed by Dallas by .4.

Possibly the most utilized number by professional bettors is yards per point. From the offensive viewpoint the positive checkmark is in the column of Dallas by a mere .1.

Now go to the key numbers on the defensive side of the ball. The yards per rush guide says the better run defense is Dallas by .1

The superior passing yards per completion data on defense give the upper hand to Arizona by that same .1 slim margin,

In terms of yards per point, the better defense is Arizona forcing 1.3 more.

Yards per point is determined by diving total yards by number of points. Offensively a lower number is considered more efficient. On defense, a higher number is better.

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Spread betting trends (all records are against the spread): Dallas is 17-4 after allowing more than 250 yards passing in their previous game, but 1-6 as favorites.

Arizona 15-5 as home underdog of 3.5-10.0, 15-6 after allowing less than 150 yards passing in their previous game, 1-6 grass.

Over/under trends: Dallas over 13-3 all, over 9-0 to NFC. Arizona over 21-7 after scoring less than 15 points in their previous game.