I took the teams wins, subtracted the game behind. gave.25 for the best over all record, gave .25 points for every road win, and subtracted .25 for each home lost, and added the goal differential (GF - GA= could be a negative number).
Reasoning:
Wins as the base this is what has been earned.
Games behind not only reflects the W-L relationship, but also, the number of games played and/or games remaining to be played ie "In-Hand".
Best overall record - A team making the most of the opportunies can earn a .25 point. A team with a perfect record having played more games can be awarded by this. Teams tied with the best record will not get the extra quarter point.
Road wins to get a quarter point - though hometurf advantage might be overstated by this. Winning on the road should be rewarded.
Home loss - costs a quarter point - A team not defending its turf gets docked. The quarter point has to come from somewhere.
The goal differential - separates the Champions, from the condenders and the rest.
After week 5:
The Champions:
Colorado 14.5
Philadelphia 13
SWARM 12
The Contenders:
Calgary 8
Buffalo 5.5
Toronto 4.25
The Rest:
Rochester -3
Chicago -5.25
NYT -5.75
San Jose -9.5
Portland -15
Edmonton -20
A single game means a lot, and scoring differential really puts an exclaimation point on who is playing well and which teams have not thus far. I did not really attempt to make this predictive of what will happen in the remainder of the season. It is based on the assumption that good teams wins regardless of place or oppent, score well and don't get blown. It rewards teams for defending their turf, and teams that are road warriors. Because of the staggered schedule it weighs a bit in favor of games played rather than accounting for the imbalance.