Sword of Spirit
Legend
I just would rather pick my own character, even if it resulted in all of us playing gnome battlemasters. I don't care one whit for niche protection - indeed, I think that's the bit that actually rubs me the wrong way. Since the idea is "create your characters in isolation from the other players" let's see where that leads us.
Let me make sure we're understanding the scenario the same way.
"Hi, D&D players. You know how you have and will continue to play multiple cool characters in your D&D experiences? Tell me what the top 3 are that you want to play next, and if it matters to your choice, nobody will know anything about the other characters at the start."
Are you saying that the DM choosing which of 3 character concepts that you came up with and that you want to play is the one that he's going to integrate into this particular campaign is unacceptable to you?