Watkins. I love Woods, but Sammy's speed puts him over the top - and at 6'1"/200 as a 19 year old, it's not like he's small. He was the top WR in the nation last year as a true freshman. Woods will be the top WR picked in 2013 and Watkins in 2014.
Wow I absolutely love both these WR's, and both will be Pro Bowlers and 1st round picks. Woods will have a great season with Barkley coming back, and Watkins should also build off a fantastic freshman year. If I had guess who gets drafted higher, I'd say Woods since he is a top 15 prospect IMO heading into the 2013 draft.