Board Thread:New on Terraria Wiki/@comment-74.101.126.88-20121218114129/@comment-11469345-20130702031159

I haven't fought any hard mode bosses so, from hardest, oh you should be able to figure this out.

1: Skeletron

2: Wall of Flesh

3: Eye of Cthulu

4: King Slime

5: Eater of Worlds

Of course, when you make Godly Night's Edge, then go to your friend's world, get wings and make mythril armor, fighting all of these bosses at once would be possible.