"Right now the schools I'm looking at the hardest are Arizona, Arizona State and Texas A&M," Walker said. "The Arizona coaches have done a really good job of establishing a relationship with me, and you can tell it's a program going in the right direction.
"The coaches have talked about how early playing time is available, so that is a benefit as well."
Walker also had positive things to say about the other in-state school.
"ASU had a really strong year," he said. "Even though they didn't go to the Rose Bowl the amount of improvements they made were really impressive. Plus there are some local kids they are bringing in who are going to be good.
"Texas A&M is a school that is really on the rise. Everybody looks at their quarterback, but the amount of talent on that team is really impressive. Then you look at the success they have had in the SEC, and it's easy to see they are going places."
With so much to think about, Walker claims he isn't yet ready to make his collegiate decision.
"All those schools have something good going on," Walker said. "The two in-state schools are doing good things and everybody knows what A&M has been up to the past few years.
"There is a lot on my mind right now, so we'll just see where everything leads."