Well I'm biased as I have an Oscar and I think the name suits him to the ground. I have seen an Oscar Jack which sounds quite cute, you could have Oscar Jack Francis .......
I also have a son Lewis something a bit different that isn't everyhwere.

I really like Amelia and acutally don't mind it spelt Emelia I guess then you could use Emme as a nn if you wanted.

Have fun deciding.