Best Burger in Oakland?

I'm talking real cow meat people (sorry VGs).

We're on the hunt for the best in East Bay.

Places we have tried and liked: Anh's, TrueBurger, Lana's. RIP to Kon Tiki's burger which was fantastic. Really wanted to try Matty's but couldn't make it before they closed. I would put Lovely's on my list if it didn't always take so long.