Anti-Man is really only useful for ABX and there are characters capable of getting you to 100k for all the rewards. Hela or Loki with Ragnarock unis can do this.
Nova is still a meta in TL and AC, but there are many characters better and easier to obtain.
Blue Marvel is a near meta in TL and AC, but again better and easier to obtain characters are in the game.
The Ultimates are already outdated to be honest. All 3 are still worth having and serve a purpose, but they are by no means the top characters in the game. Nova, Blue Marvel, Anti-Man is how I'd rank them. Anti-Man last since he really only serves one purpose.