Tyranitar = Dragonite for all intents and purposes.
Donphan and Ursaring may be location dependent, but are probably slightly more rare than average. Ampharos will probably be rare. I'd compare these three to Arcanine/Exeggutor/Rhydon of gen 1.
The starters are obviously akin to gen1 starters (although Meganium seems incredibly weak unfortunately).
I would list Heracross since it's top tier, but it sounds like it will be South America regional exclusive which is total BS