I just wanted to throw this out there (at the risk of being controversial).
I haven't followed his college career much but what kind of experience/success has he had playing in cold weather?
At Metlife stadium, he seemed to be struggling with the accuracy of several of his throws (even a couple that were completions), and he had an uncharacteristic "self-fumble" near the redzone (which he thankfully recovered) on one of their drives.
There was the throw to a wide-open Miller that sailed out of the back of the endzone -- a touch pass that Russell never misses (or at least, I've never seen him miss a throw like that). I know that the old Giants stadium was notorious for unpredictable swirling winds on parts of the field. The new Metlife stadium was supposed to address that, so I've read.
With that said, I think the experience playing in that stadium, in December, is extremely valuable if we're to play there again in February.