The HOU play to Williams was the most impressive play to watch.
The conversion to Williams in SEA was a more unlikely and more important play in that game, in my opinion. And that was one of the 3-4 most important games of the year (behind the play off games and maybe that final PHI game). It definitely set the tone for the season.
Personally, I think the Dez catch that was wrongly overturned in GB was his biggest play last year. One, it was just incredibly gutsy. Two, it was a great throw, coupled with a great catch. Three, it put us in position to possibly win that game, and 4, it was wrongly overturned which cost us a shot at advancing (sorry, but that evidence was disputable by any standard). That's big by any standard. Plus, I don't like it getting swept under any rugs. It should be front and center for last season where it belongs.