I, too, have been looking for a better resource editor. Since I use xHarbour, with its (Pelles) C compiler, I used the resource editor in Pelles. However it has problems. I tried to post to their forum and it was dead. Finally I posted a note there Saturday when it was revived, but no response.
I use Multi-Edit for development and I am so used to it that making a change to UE is not desirable, especially if their resource editor has problems.
I tried Resource Builder and when it created a mess with the tab pages ( not aligned on the master page ), I removed it. I got a survey asking why I removed it and replied. Then I received an email saying they wanted to work with me to earn my business, so I sent them details of the problem. They never replied.
My needs are simple. I want a resource editor that will show me the same dialog as what will display with the program. So far, getting that result is not happening. I have to do a lot of manual editing to get things into the proper sizes ... which is most frustrating.