Snape should have kicked James/Sirius' behinds!!.

[wynnleaf]

No: HPFGUIDX 156214

 
> Joe: 
> Didn't McGonagall say that James and Sirius were the two "cleverest
wizards" of their year/time in POA? That would include Snape right?
Now even assuming McGonagall has a good case of Gryffindor bias she's
still pretty straightforward.

wynnleaf,
Since it seems pretty clear that she didn't know who were the top
students in potions, I'd say that McGonagall was biased.  Maybe her
bias was more for transfiguration, which I think James must have been
pretty good at.

Joe
>   I also wonder if everything in the HBP Potions book was invented
by Snape. Because it was written in his hand is no guarantee that he
invented all of it.
>    
>   No doubt Snape was pretty smart and inventive. I just think that
sometimes people like to make more of it than there is to play up the
whole Anti-Hero line some people think is going to be revealed in book 

wynnleaf
Well, at this point all we have to go on is what JKR has revealed. 
According to what she's written so far, Snape made up the spells in
the potions book.  There's no evidence that anyone else did at this point.