Its probably a safer bet with the Tories for keeping a stronger economy, Labour would borrow too much without productive assets, its already been mentioned that a few of the really big UK Finance lenders would have second thoughts if Labour came into power. The lending power of the Tories would effectively have a bigger credit score than Labour.
As regards to the NHS that commitment is more genuine from Labour, but the NHS is so much under the spotlight now that the Tories can't back away from their promises otherwise every man and his dog will go after them.
For me Corbyn is a really big concern for National Security of the nation, especially if Diane Abbott really does want MI5 to be less effective.