I love Aiden too. It is a little similar to Hayden but not too much. If you both love it, go for it. DH and I love the name Addison and would consider it if we had another, even though our niece is called Maddison.

Boys names are hard - I had about 30000 girls names picked out but when we had DS the only one we could agree on was Tom. I also loved Noah but it reminded DH of Noah on Home and Away apparently - not that he even watches it!

So I am putting my vote in for Aiden but out of your origianl list, I would say Marcus. Good luck!