Edinburgh and Glasgow
 

After seeing the Western Islands, I have three days left for "Big Cities". The question is:
One day in Glasgow and two in Edinburgh or all three in Edinburgh.
Traveling in May
Thanks

Stay in Edinburgh and commute to Glasgow one day.

I'd book all three days in Edinburgh and decide at the time if you want to do a day trip to Glasgow. Easy train link and you don't need to book tix ahead.

It depends on your tastes and interests. We actually enjoyed Glasgow more than Edinburgh.

I would think it would depend on what you are interested in seeing/doing.

I would agree though that it would be better to stay in one or the other for the entire time rather than move for one night.

Yes, I think staying on one place the whole time is the best choice.