Honestly, I'm not a huge fan of the old Brewmaster build (blink -> Aghs). Granted, I haven't played him a lot in the new patch, but the few games I had I found my ultimate lacking that old punch. The issue I see with the hero is that his ultimate was always mid-game focus. The previous aghanim's buffing the brewlings gave you a bit more time where it was effective, so rushing into an aghanim's was alright since you could recoup that loss of time it took to farm the aghanim's.
But now, I find the brewlings are just too easy to focus down even earlier in the game. If you focus just on blink and aghanim's, even pulling off a successful initiation doesn't mean you'll destroy the fight and when you don't have your ultimate you are just a useless, drunk red panda.
Still, I wouldn't go Skadi and Vanguard either but I do prefer him in a more farming secondary carry role. He's still a great aura carrier and if you build for damage, you make yourself a larger priority target in teamfights (thus necessitating the enemy team focus you without having to grab the blink dagger). Drunken Haze is a hilariously effective anti-carry tool, Drunken Brawler gives you a bit of a steroid and when you end up in serious trouble, you can split to extend your influence during teamfights and often clean up low health targets.
That said, the Radiant team is hilariously low on good disables which is always a big contender for why teams lose.
