Interesting, I think most RTS players would point to StarCraft 2 as the apex, and they'd probably be correct given how its still played so much today.
What makes Warcraft 2 the apex for you over StarCraft 2?
Buildings as walls and using spawn points to jump through terrain are fun mechanics in WC2.
Funny how many people think Starcraft 2 isn't even better than Starcraft 1, especially when you add in Brood War.