As a Knick fan I would be happy to see Carmelo in a Knicks uniform. Yes I will Miss Gallo, But he is no Carmelo. Wilson Chandler, was a RFA couldn't see the knicks giving him a huge contract. Plus Felton, the Knicks would be getting back Billups, I happen to believe Billups even at this age is still a better player. I know a 1rst rounder is involved, which is no great loss. The sticking point here is Mozgov, I would prefer the knicks not give him up, but I would personally do it to get Melo and Billups.
As for the Nets I would give up two first rounder for Gallo, I honestly think he could develop into a star for them. He's young so I would actually be pretty happy doing that if I was the nets. If I was a nets fan, I would be excited to get gallo for two first, I mean I know it is early on Derrick Favors, but so far I haven't been that impressed and he is the third pick, so you never know with draft picks. So Gallo is a young good player, who might only get better, so in my opinion he would be a fantastic acquisition for the nets. All is just my opinion, and I could always be wrong though.