"I'm excited about it," Gordon told Scout.com. "It's been a long time. I just hope I made the right decision. I think I did."
Gordon, an elite forward out of San Jose (Calif.) Archbishop Mitty, said his future college destination hit him when he talking with his parents at home.
"I was talking to a couple of people and I said it and my parents were so shocked because they had no idea," Gordon said.
It took some time for Gordon to come to a decision. He admitted to being close to announcing during the November signing period, but opted to wait it out.
"I just knew at some time I had to make a decision," he said. "I know with each school you go to obviously you can't connect the dots going forward so you're going to have a little bit of doubt, but at some point I had to make a decision. I just looked at the situation and looked at the teams and tried to figure out what was best for me."
With Arizona, Gordon is drawn their current personnel.
"It's a really, really loaded frontcourt," Gordon said. "That makes them so big. They also have a very experienced backcourt as well and it's a great shooting program. They lose three seniors and three of their main scorers. Sean Miller is a really good coach and knows how to win."
With the quality big men on the Arizona roster, Gordon says it "pushes me out [on the perimeter]. I love it."
"I definitely need to work more on it and that's what I'm going to do because that's where I see myself in the future and that's where I think I'll be," Gordon said about playing on the wing. "I think I'll be too big for most threes and twos and too fast for fours and fives."
Kentucky already has six five-star recruits on board. Gordon sees the advantages of possibly playing along so many talented incoming recruits.
"Once again a winning coach and a great program," he said about Kentucky. "The level of competition there would be incredible so practicing everyday would make you so much better and it's also just so basketball focused. You wake up, you eat, you sleep and you play basketball. That's why I like Kentucky."
Originally Gordon cut his list to three, but opted to add in Oregon and took an official visit to Eugene. He said their young talent and facilities are attractive to him.
"Dana Altman is a great, great coach," Gordon said. "They are young. They have a really young team. They have young talent and young talent can really surprise people basically in NCAA basketball."
"They are just bringing people along," he added. "Also Oregon has really, really good facilities. I could see myself thriving at Oregon."
Washington has been recruiting Gordon since he was a freshman. Gordon has a strong relationship with Lorenzo Romar, but he also likes how they would use him if he landed there.
"Romar is an absolute great coach and he has complete trust in me," Gordon said. "They have a pretty good frontcourt as well with Shawn Kemp Jr. The thing about Washington is I'd be used in so many different ways at Washington -- high post, on the block, on the wing and the top. It'd pretty much be playing the one through four and that's what interests me there."
Gordon, who led Mitty to the CIF final, said Lorenzo Romar and Dana Altman watched him during the playoffs. Arizona sent assistant coach Emmanuel "Book" Richardson to see him.
Gordon will announce his college decision on Tuesday at 12:30 ET during the Media Day for the McDonald's All-American game.