[Fzang]

The first product obviously has the two groups farthest away, but could this be considered a "major" product? There's hardly any difference, except for a single C-C distance, which only matters because of a methyl group far away.

So, is this a 50/50 or more like a 60/40?

[MissPhosgene]

Try using a Furst-Plattner diagram.

[Fzang]

I'm afraid I've never heard of this before. I started at the university in September last year, so this is way beyond me.

[balu]

Looks first one is major product. But no idea about the ratio. But it will very very close to 1:1 with product number 1 as the major product.

[orgopete]

It isn't 50:50, but similar. See http://chemistry.creighton.edu/Opportunities/Baumann/MichelsReport.html.