The recommendations in all dedicated threads are to be taken with a heaping of salt usually, from iOS to PSN to this thread. It's hard to differentiate between what's worthwhile if you have all platforms, and what's worthwhile if you devote all your attention to just one.
Taste is a factor too. I've seen a lot of negative comments around the web about Xeodrifter but it was one of my favorite eShop games last year, even if I did 100% it in an evening. On the other hand, I tried to like the highly-praised Sin & Punishment but it was just not fun at all for me.