I've used and taken game with a number of different broadheads over the years. 4 blade, 3 blade, 2 blade, replaceable blade, single bevel, etc.
My favorites for a long time were Ribteks. I still have some and will use them in a heartbeat.
I was looking to switch to a more readily available head and came down to the Ace Standards. I like a 2 blade head, they sharpen easily with a file, real tough, fly great, Made in the USA, and you can still get 6 for a reasonable price. They did a real nice job on the last 2 whitetails I shot.
The Ace Standard, or some version thereof, has been around since the 1930's. I'd call that a "Classic." Good company to deal with as well.