True, I forgot Tony's fights from IW.
Anyway, I'd say he kind of gets destroyed in CQC, he may be skilled and used to fight a variety of opponent, but Akuma's far beyond him in terms of martial arts.
Missiles, shapeshifting (for the armor), flight, blasters and info analysis would surely allow him to hold his own for awhile, but they aren't anything Akuma can't deal with or is used to fight against; he fights projectile users all the time, and has his own ki blasts and counters to them, acrobatics, other blasts, Ashura Senku and Kiai.
Also, the Shun Goku is a oneshot.
Class T is definitely a problem, Akuma is powerless against Tony on that field, but it's not like he's a grappler or is used at doing it often (although he restrained Thanos' hand with his shapeshifting armor), nor Akuma wouldn't adjust himself once he undestands that.
It isn't really in-character for Tony to get far into the air from what I've re-watched, but if he does it for whatever reason, he wins.
Overall, I vote Akuma.