Do you love the wide dispersion of the DCMs? If so, eliminate the 1.6s which have a very narrow sweet spot. I think the PSBs are dogs. Consider the 2CE or Kestrals. B&W is always nice and if inefficiency doesn't matter, the NHTs image well. You have to decide what you did and didn't like about the DCMs. Having spent a lot of time with them, I would say that they image great, have slightly bloated bass and roll-off way too early in the highs but are nice older speakers.
Any of these speakers will have better highs than the DCMs. Also, consider how loud you listen, what will fit with your furniture and what can you get locally.
Any of these speakers will have better highs than the DCMs. Also, consider how loud you listen, what will fit with your furniture and what can you get locally.