swood, it's been a year and you still can't decide?
There are many reasons people like Gosen Micro: it's cheap, it's not too soft or firm, and it has pretty good power. As a result, it makes a really good cross string.
Based on my experience if I want a cross that has decent durability and a more muted feel I choose Forten Sweet. If I want a cross that will be a little crisper feeling, I use PSGD. If I want something in between, Gosen Micro is the answer.
aggietex, I agree that Head PPS is very nice but it might not be the best choice for a cross string bc many feel it has durability issues. Head PPS would be my syn gut of choice for a full string job if I didn't have to worry about restringing often.