I understand we have a very small sampling...maybe 5 games or so, but to me--I dont think Mcnabb was EVER as good as Vick is this season so far.
Accuracy -Vick. No balls in the dirt from him. Just laser like perfect spirals

Arm strength --Edge Vick...hes also more accurate on his deep throws

Scrambling...Mcnabb used to be a very good scrambler(still can do it sometimes) but Vick is the greatest scrambler of all time.

Toughness...hard to measure this but I would give the edge to Mcnabb.

Demeaner/Leadership---No cracking jokes or laughing from Vick on the sidelines or in the huddle..and most importantly no ghey ass Air guitar !

Intelligence...hard one to measure but it seems to me Vick may read the defenses a little quicker.

Time will tell on this but I dont recall Mcnabb ever having a season like this one..ys hes put up big numbers but Vick makes the spectacular play AND makes all the regular throws hes is supposed to make(which you cant say for Mcnabb)