You don't need prediction nor a sacrifice to bring Salamence in on a Skarmory or a Gliscor, two very effective pokémon, both with high usage, which can't do shit to Salamence, are slower and get OHKOed by it. Salamence also comes with impunity in half of Scarf TTar's (which usage is as high as Mence's) moveset (Pursuit and Superpower/EQ).
Bringin Mence to the field is not hard at all and does not require any sacrifice.
Yes, but what SubVersion is saying is that you need your prediction to get your "guaranteed kill", which putting it that way, is hardly guaranteed.
True, but SR must still be taken into account. You cannot deny Stealth Rock makes Mence about 5x easier to handle.Also stealth rock is not a counter argument, why? Because if SR keeps salamene out of Uber, then why HO OH still in uber. I know HO-OH stats are insain. But if you think about it, she has the same attack and sp.atk as salamence, and she has an even worse SR weakness. She is also slower than salamence, and does not have a decent set up move and is therfore more predictable.
You pretty much answered your own question there. Ho-oh is so much bulkier than Mence, and can easily be twice as bulky if it gets a burn on you with Sacred Fire (physically), while we don't even need to talk about her special bulk. The bulk also allows it to more easily negate damage from SR with Roost. Also, unlike Mence, Ho-oh doesn't need to resort to using its Special Attack, since Sacred Fire/Brave Bird/EQ does well enough already, while Mence pretty much needs Fire Blast or Flamethrower to get past Skarm and Draco Meteor to get past stuff like Swampert (Outrage is way too risky to use at times). Ho-oh is much more predictable, yes, but it doesn't make her any less Uber. Wobbuffet is probably the most predictable Pokemon on the face of the Earth, and he's Uber. Unpredictability does not make a Pokemon Uber.I know HO-OH stats are insane