devtrackers.gg
Super cool stats! My theory/interpretation of these winrates that they are currently skewed towards players who are experiencing the game for the first time.
For early-game, Brute/Gaunt pushes are extremely powerful if you don't know the exact reactions, but I see them as less of an issue at higher levels. (Note that this doesn't mean that new Vanguard players dying so early on isn't a big issue.)
As for late-game, I've been hearing that both factions have extremely powerful tools, but the Vanguard ones are generally a bit easier to use (Deployed units + Vulcans vs Weavers/Imps/Hellbornes)
I'd be curious to see what the stats say for players above certain MMRs/RPs!