Is there any stable Adobe Reader for OSX?
I also have the AR XI on my MBA 10.9.2.


  Architecture: i386
  
  Build: 11.0.06.70
  
  AGM: 4.28.134
  
  CoolType: 5.11.135
  
  JP2K: 2.0.0.32097


So far no crashes here with any kind of PDF, online or of line, in German and English with > 70 pages long ect..

Maybe you should look in your Console after a crash to see what is doing it.

Additionally some more information:

The Adobe Reader is not recommendable when editing LaTeX documents because it is uncomfortable regarding forward and inverse search between source code and PDF output. It does not support SyncTeX and therefore is only usable for viewing (and perhaps printing) the finalized document.