I like
Henry, and it's meaning.
I don't like
Harry. Obvious teasing potential.
Henryk: I think people will think you've made it up, which isn't necessarily a nice thing to think, or pronounce it "henry-k" as a joke.
Henrik is nice though.
Henry AidanHenry JacobHenry ChristopherHenry NicholasHenry AlexanderHenry JadenHenry JonathanHenry David