Depends how much you like the Skydweller but that was what I chose. I got bored of waiting for the steel blue dial and was not prepared to pay the asking price on the grey market given that this was available for not a great deal more.
I think this is sufficiently different from the steel version, but that will be personal preference. I considered the GMT, but thought that it would probably be a short term choice and I wasn’t convinced I wanted a full gold bracelet - same with the day date.
There are also some nice Patek annual calendars and I especially like the 5205R with the black dial