Tyranitar Bite/Crunch V.S. Bite/Stone Edge
I saw a discussion here earlier (https://pokemongo.gamepress.gg/q-a/bite-crunch-vs-bite-stone-edge) focusing the fact that GamePress put B/C in front of B/SE in Tyranitar's page. Some argued that this is a hint from GP that B/C is superior to B/SE. While many agreed that B/SE is still superior to, or at least no worse than B/C, I'm here to throw a new angle: B/C is more future-proof.
Yes, B/SE is the better choice when handling Blissey/Snorlax/Dragonite as a generalist. It is quick, damage-efficient, and dodge-friendly. However, don't forget those are basically the traits of every elite generalist. In the future, more generalist will be released and, what guarantees that Tyranitar will stay as top 1? In Gen 3, if you have a Metal Claw + Future Sight Metagross (let alone new moves), that would be a better generalist. Resist Normal, Fairy, Psychic (double resist), Dragon - a better answer to Blissey/Snorlax/Dragonite. So B/SE will not always prevail.
You might still argue that the rock attack is great - yeah, but how about Rhyperior (evolved form of Rhydon) in Gen 4, with max CP 3869? Or simply Golem, as a pure Rock attacker who also has access to SE. If they raise the value of STAB, or favor type advantage in the new gym, pure attackers will be even more valuable.
B/C Tyranitar, on the other hand, will prevail longer. It is the strongest non-legendary Dark attacker of all Gens to come (by CP), only second to Yveltal the legendary. You'll find a pure Dark Tyranitar more useful when dealing with strong Psychic types in the future, say Metagross.
That being said, I'm not saying that B/SE is worse than B/C - it is still one the greatest attackers; regarding future-proof, it just somewhat loses a little bit to B/C. And of course, this analysis is based on the assumption that Crunch and Bite will not be nerfed significantly in the future.
In conclusion, for those who rolled B/C and feels upset, I suggest you don't! You got yourself a more future-proof attacker.
Answers
Don't think anyone who rolls a B/C can technically be upset......
I think your analysis applies to all attacking movesets that have stab and are of the same type. No matter what niantic do to moves etc they probably won't make a dual-stab moveset THAT bad.
Even today an ember/flamethrower charizard isn't exactly tragic compared to FS/OH. So I really hope B/C stays where it is, even if they introduce other moves to Tyranitar.
You know what. Last night I just evolved 2 90%+ IV Lavitars all the way up to Tyranitars and I was wishing for B/SE to deal with all those dragonite and gyrados in gyms. Both Tyranitars ended up with B/C and I am beyond happy as my first three had B/FB, B/FB, and IT/C.
Any moves set is better than IT/FB so be happy people
Why in the world would anyone be upset at either moveset?
Both are great. B/SE will get some love due to being fast. B/C does a huge amount of damage.
Both sets will only get better as time goes on. The OP is right about B/C becoming better and B/SE won't be less valuable as time passes. Check out the combo of restances for both as we go forward. All of the flying mons coming including Hu-Oh, lugia, all of em are going to be properly wrecked by B/SE. And other things with rock moves just don't have the overall stats to be as good as Tyranitar with SE. If you get either moveset you should be happy.
