Worst boss fight in the best games?

[BFR]

Kudos to Legit for this thread. Luckily, I have never played any of those games, and based on the posts here, I have no desire to play any of them.

That being said, I would like to see Legit start a new thread on "Most Epic Boss Battles" in any game. (and I'm assuming you haven't yet done this)

For me that choice would be Atheon from D1. It is the boss at the end of the Vault of Glass raid. The VoG raid takes up to 6 people to complete, I died many times trying to beat him, finally got the job done in Dec. 2014.

Many great memories.