Hmmm, it's the danger with comparing ability alongside form. Last season I think Abate had a storming season - for his level - even though he's not a fantastic defender. For example I noticed he also made it into a few 'team of the year' selections.
However I still believe Lichtsteiner to be better, I prefer my fullbacks like that.
Haven't seen Lich that much as I've seen Abate. Abate's season was really impressive as some of you mention. I rate Abate higher but it's not really a fair rating since I've seen Abate a lot more.