I'm not taking anything away from Tyranitar, but they're simply not the same even if they share the similar stats.
1) The point that Ho-Oh loses his reliable recovery is moot because of how often he forces switches. You switch Ho-Oh in to Ferrothorn and lose half your HP, it doesn't matter because you can still use Recover or Roost on the switch. When you consider his dual STAB and the fact that Sacred Fire is 50% burn, exactly what is going to want to stay in on Ho-Oh? Also, this example is giving the benefit of the doubt assuming Stealth Rock IS up. It won't always be.
2) Ho-Oh, while 4x weak to Stealth Rock, is immune to Spikes and Toxic Spikes. Tyranitar is not, and unlike Ho-Oh, Tyranitar has no way to recovery the damage reliably.
3) Tyranitar's most reliable offensive move is Crunch. It's base 80. Stone Edge is base 100, but the accuracy costs you games. Ho-Oh has a base 120 Flying move, and a base 100 Fire move that gets boosted in the sunlight for free. Whether or not we're talking about its potential in OU or Ubers, both are common conditions. The dual STAB type advantage for Ho-Oh is also much, much better. If Tyranitar wants that same coverage, he's digging in to his movepool for moves with weaker base power and no STAB.
4) Tyranitar only has bulk while sand is up. When sand is gone, his defenses are substantially reduced. A minimal but notable point.
1) The point that Ho-Oh loses his reliable recovery is moot because of how often he forces switches. You switch Ho-Oh in to Ferrothorn and lose half your HP, it doesn't matter because you can still use Recover or Roost on the switch. When you consider his dual STAB and the fact that Sacred Fire is 50% burn, exactly what is going to want to stay in on Ho-Oh? Also, this example is giving the benefit of the doubt assuming Stealth Rock IS up. It won't always be.
2) Ho-Oh, while 4x weak to Stealth Rock, is immune to Spikes and Toxic Spikes. Tyranitar is not, and unlike Ho-Oh, Tyranitar has no way to recovery the damage reliably.
3) Tyranitar's most reliable offensive move is Crunch. It's base 80. Stone Edge is base 100, but the accuracy costs you games. Ho-Oh has a base 120 Flying move, and a base 100 Fire move that gets boosted in the sunlight for free. Whether or not we're talking about its potential in OU or Ubers, both are common conditions. The dual STAB type advantage for Ho-Oh is also much, much better. If Tyranitar wants that same coverage, he's digging in to his movepool for moves with weaker base power and no STAB.
4) Tyranitar only has bulk while sand is up. When sand is gone, his defenses are substantially reduced. A minimal but notable point.