I think it's a toss-up between 1 and 2. You can't go wrong with either, just don't use the included glass front panel on the H500.
[Note: the H500 is supposed to include swap-able glass and mesh front panels.]
If you prefer the look of one over the other, go with that.
#3 depends on the hardware you're going to put in it. Silence focused cases tend to sacrifice cooling performance, and because of that, at times they can be louder than the airflow focused ones. Oh, the irony...
View: https://www.youtube.com/watch?v=jKJDqqkDTGI