Export from Emacs org mode to LaTeX. org mode offers plenty of flexibility to tweak the final output and lets you focus on writing.
Edit: and creating tables in org mode is _so_ much better than in plain LaTeX. If you find yourself manually working on tables, the Emacs + org mode combo is worth investing time in.
What's the missing feature that has your going back to latex?
I switched to markdown and sublime a while ago. No more sideways tables, true. But even for that there is a workaround. And much less distraction in return.
I've just worked with LaTeX for a long time and know all the tricks to make it do exactly what I want. Equations, figures, tables, cross-references... I can get it all to work on the page. And some of my collaborators still print things out, so using the tricks to get a good-looking PDF is still worth the trouble to me.
When I want to get my rough, fluid thoughts onto a page, it's going to be easiest in Markdown + Sublime. But once the story and structure is basically there, the final product is easiest to achieve in LaTeX.
Eventually you need to actually build the real document though.