Gilmore is good but not worth breaking the bank over. I'm glad they didn't tag him, but I'm bummed that he's going to NE.
Aaron Williams will be missed, but I missed him a lot over the past two years when he was on IR. I hope he retires while he's still able to walk.
Woods is a solid #2 receiver. Of the three mentioned in this thread, he's the one I thought would be most likely to return.
Ultimately, however, all three are replaceable with a smaller impact on the cap. I was bummed when they cut Freddie, but I knew it was the right decision. I feel the same with this situation.