Brawn states he is, but anyway without the right car that's just conjecture.
MS can not transcend physics - if the Benz is some 1.5 seconds slower around Suzuka which is on the cards, 1997 or today, MS will not top 3 under normal circumstance and as with Spa 4th or 5th would be the target and would be a great result.
Yes you are correct about that; the 1997 Williams was an extremely quick car, but Ferrari closed the gap at the end, and Schumacher showed his skills very clearly that season.
I am going to actually disagree with Ross on the 2011 vs Mid to late 1990s Schumacher. He did quite impressive in rather "average" Ferraris. The Red Bull would be like Williams of 1993 rather than 1997 because they are quite dominant; although, 1997 had potential to be very dominant due to how fast Jacques was at Albert Park. But I still think if Schu was in his prime, he could but the Benz somewhat closer to the front end of the grid than now.