Walcott or Young? Tough one!! I dont particularly think either of them are that good!
I dont think Walcott knows what he's doing or what his role is on a football pitch, he has no footy brain at all, and just plays off instinct - if somthing comes off then he looks good but ive not been impressed by him many times, twice or maybe three times at most!
Now Young seems to have a better footy brain and understands his role and his position, his crossing and passing can be very good but too often (like Wlacott) just runs with his head down presenting himself with poor opportunities and thus does not produce a good enough end product!
But i would take Young over Walcott!