(using scout/rival data, which is often a little off)
Offensive line depth at the 3 schools.
Nebraska
3 seniors
5 juniors
12 sophmores/rfm/fm
18 current commits including...
OL - Hardrick, Moudy, A-Rod (+ cotton probably moving)
LSU
2 seniors
1 junior
13 sophmores/rfm/fm
25 commits including...
OL - Porter (scout projecting D),Washington
Illini
2 seniors
2 juniors
12 sophmores/rfm/fm
10 commits including...
OL - Afryl, Bolton, Cvi, Heitz
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As for the class goes, LSU is certainly short on the OL. (because Hardrick saw the light and switched his commitment). They do however have a fairly full class at 25 and won't be graduating a lot of depth over the next 2 years.
The Ilini are still realing from the assistant coaching changes and their recruiting has taken a hit. They'll make a late push for a lot of recruits still left without a home. (see nebraska's 2008 class) They already have 4 offensive linemen committed however. Their class looks to be in shambles.
Nebraska has a fairly solid OL going into next year (regardless of their performance this year), however with Jones, Williams, Henry & Smith graduating after the 2010 season, all spots will be fairly open. A redshirt year would be ideal to put Fulton into a position to compete for one of those spots in 2011.
I think Nebraska stacks up nicely against the Illini and LSU. Add in the fact that there is almost NO chance that the Illini will be competing for a national championship (or Big 10 championship) in the next 4 years and he should be able to rule them out. Les Miles is on the hot seat after next season if he doesn't get 10 wins and reach the SEC Championship. I see LSU having major coaching changes in the next 1-3 years. In that area Nebraska is about as stable as they get - proven this year by the performance Watson/Cotton put in, yet the loyalty still showed to them by Bo. They were just burned by coaching changes at Tennessee...if they are looking for stability, Nebraska is 2nd to no one.