Bennett Joseph- Bennett <3 I adore the nickname Ben, and therefor I find most ben names awesome. Bennett is great. Classy, but not as overdone as Benjamin (though I love it). Joseph is a great name and it flows very well.
Charles Dominic- I'm not a huge fan of Dominic, but I adore Charles/Charlie. It's one of those names that's great because Charlie is lovely for a child, and Charles works really well for a grown up. While I'm not a person fan of Dominic there's nothing wrong with it and I agree it flows very well.
Daniel Jacob- Probably my favorite. I adore Daniel and Jacob! I also love that there isn't a nickname. Of course, Dan/Danny isn't bad and he might want to go by it but I like that you don't automatically shorten it :-)
Gregory Thomas- Not my favorite, but it's nice. Gregory is lovely, and I can really picture on any age, but I'm not a huge fan Thomas. I suggest Grey or Rory for a nickname, and Gregory Nathaniel or Gregory Oliver instead.
Joseph Gordon- Gordon <3 ! I adore Gordon. Joseph is great. Like Daniel, I like that you don't automatically shorten it. Second favorite of your names.
Kevin Andrew- I love Kevin! It's so cool, and really fits any age. It was decently popular I think at some age, but was never overdone. And I adore Andrew, have had it in many spots in my top ten list.
Nicholas Adam- Cute! Nicholas is great, and isn't as popular anymore. One of those great names that will never be totally out. Adam is cute and works super well with it.
Walter Philip- Walter is pretty old fashioned, but I actually really like it. It's cool, I can see it coming back. Wally would be cute as a little kid. Philip is cute and works well with it. Good flow.
As always, I really like your style. Many of these names are actually in my family haha :-)