Arik Armstead needs to make a decision.

And quick.

The 6-foot-6, 280-pound lineman — one of the top prospects in the Class of 2012 — has graduated early from Pleasant Grove (Calif.) High and wants to start classes at the college of his choice for the spring semester.

He just needs to figure out where he’s going: to California — where he’s already enrolled for classes — USC — where he originally committed in the summer of 2010 — Notre Dame — where he said he’s already filed paperwork — or Auburn, which he said he’s “probably” enrolled at now as well.

Armstead, who took his final official visit, and first on the Plains, this weekend, said Tigers coach Gene Chizik told him he could get him into classes by Tuesday.

“I've got a good relationship with all the coaches,” Armstead said. “You know, they've been out to California a lot, so I thought I would respect them, and I respect them a lot so I came out here and took a look for myself."

Five-star wide receiver Stefon Diggs doesn’t have quite the time crunch Armstead does — he doesn’t expect to make his choice until after Signing Day on Feb. 1 — but he’s also got Auburn on his radar.

Diggs, a 6-0, 185-pounder from Olney, Md., took his first official visit to Auburn this weekend and plans to take two more before coming to a decision, one to Florida next weekend and one to an undetermined school after.

“This probably was my best visit yet — officially or unofficially,” said Diggs, who said Cal, USC and Maryland are also in the running. “I felt comfortable here. It's a family. Just felt at home.”

Which means Auburn is factoring heavily in the thought process of two of the nation’s top recruits.

Armstead is a five-star recruit on both Scout.com and 247Sports.com and a four-star on Rivals.com. He’s the No. 1 offensive tackle nationally on Scout, the No. 1 athlete on 247Sports and the No. 4 defensive tackle on Rivals.

Armstead said he spoke extensively with new defensive coordinator Brian VanGorder and defensive line coach Mike Pelton over the weekend, and he can see himself playing on an end or at the 3-technique for the Tigers.

“(VanGorder) knows what it takes to get to (the NFL), so if I came here, he'd be able to help me,” Armstead said. “He knows the ins and outs of it, and that's what I want to do, play in the NFL.”

The lineman from California also has two extra aspects to consider that most recruits don’t have to deal with.

First, he wants to play basketball at the next level. Armstead said he met with Tigers coach Tony Barbee — who played with his AAU coach — during his visit and took in Auburn’s Friday practice.

Second, his brother, Armond.

Armond Armstead started on USC’s defensive line for two years before sitting out the 2011 season with an undisclosed medical condition.

The elder Armstead, who has one year of eligibility left, is seeking a transfer and said he and his brother could be a package deal.

“That's what we want if it worked out. We have to talk as a family,” said Armond Armstead, who accompanied Arik to Auburn this weekend. “It might not work out, but it might work out where we can play together.”

He said he didn’t know if USC would grant him a waiver to play a year at an SEC school, but it’s “definitely possible.”

As for Diggs, the receiver had visited Auburn unofficially before, but he had never gotten a chance to sit down with Chizik.

Once he did this weekend, he came away impressed.