Ken - While Ross is certainly not the largest player in the world, they are a top player and have a great product at a fair price.
I like the sony switcher, probably better than the ThomasGV or Snell/Wilcox switchers.
I also realize you probably use a fair amount of sony gear already and hence have a reason to seriously look at the MFS but that said, after sitting down and using one some different mixers I _really_ like the new ross vision line of switchers. I would (humbly?) recommend you give them a serious look.
http://www.rossvideo.com/The new AuxKeys on remote panel feature and the way ross deals with cross conversion are two major wins for them in my book.
Karl P