You both have very valid points.
I see it as they are both equal oppurtunists. Garchomp and Salamence can destroy walls, this thing has Taunt, can stop Skarmory's whirlwind, G and S both are faster, they both have a "bulkiness to them", Ono is more powerful and has no quad weakness to ice, and can work around Skarmory i.e. Magnezone, etc, and quite honestly, it's funny to see it get overhyped, then see people say it sucks in comparison to Garchomp and Salamence, who apparently does the job better.
But then people are gonna get swept by it, because people underestimate it of course.
Also, creating paragraphs and separating huge walls of text makes it easier to read your guys' theories better. It also makes sure our eyes are happy and strain-free :)
I do try to make my posts as friendly to the eye as possible :)
Anyway, I don't see any reason to hype this thing, it's true that with all the hard hitters introduced in gen V, Ono's defences can't make it. I don't think 90 defences, which were considered "passable" in DPP makes the cut anymore. Too many attackers with over 120 as an attack stat.
However it still has that unique niche of a taunting dragon, and the ignoring the attack is stupid. That's why I say this thing breaks walls and makes a good anti-lead. You want your anti lead to hit as hard as possible. Ono can do it.
Just my two cents. I have no idea what to make of many of the new pokemon.