Hudson is my absolute favourite boys' name. If I had a son, he would be named Hudson, hands-down.
More lovely H names:
Hal is one of my favorites. It can stand alone, but I love it as a nickname for Henry, too.
My great-grandfather was named Hyman.
I don't know if Harvey has been mentioned yet, but I think it could come back.
I also love Howell (pron. basically like the word Howl).
my big GP 'h' name is harbor. i also like henry, harrison, & harper.