I like the family middle name theme. I voted for George Watts. I didn't vote for Bruns just because it's awkward for me to say and I kept almost saying Bruins in my head. You probably wouldn't have that problem though, lol.
I also like George Nathaniel and George Lachlan. I like Bartholomew and Moses as well but they didn't seem to have a deeper connection and Moses especially doesn't flow well. I'm only "meh" on Aidan but it is right there with Moses- no deeper connection and I don't think it flows as well as other options.
ETA: Oh, I forgot about Cook. I feel like out of the family names it doesn't flow as well as Watts. I think I like it better than Bruns though.