The two nations are among the 24 contenders going for gold at the June 21 - July 19 championship.
While Kwesi Appiah's outfit will be chasing their fifth title, the Teranga Lions are eyeing a first, their best performance remaining a second-placed finish at Mali 2002.
"Since I’m Ghanaian, I obviously want Ghana to win [the Cup] but if I had to pick any other team, I’ll choose Senegal because they have so many good players and young guys who are playing in Europe," Adams, who plays club football for German side Hoffenheim, told Footballmadeinghana.
"Their impact in European leagues is very high and they play in big clubs as well. So, apart from Ghana, I’ll choose Senegal.
“Morocco is also one country that can cause an upset.
"Cote D’Ivoire have very big names in Europe but they have struggled to make it.
“As a team, I choose Senegal because we all saw them in 2018. They were fantastic and made it to the World Cup but were not able to make it to the next round.
"But for me they played really well and were organised as well.”
Ghana are in Group F with defending champions Cameroon, Benin and Guinea-Bissau.