You really can't go wrong with either. I'll tend to play goalies against each other when the opportunity affords itself, since you're guaranteed a win and the combined stats will usually level out to be decent.
You'd think Scrievens was due for a stinker eventually, but NJD's on a back-to-back, so he's probably safe. I'd probably pick Lehtonen, TBH. He's been on a tear recently, and whenever it seems like a wash, I always go West over East.