I'm partial to Localytics, but that's because we pay for their Enterprise solution which insures a complete copy of your raw data stream on S3 and much better r

I'm partial to Localytics, but that's because we pay for their Enterprise solution which insures a complete copy of your raw data stream on S3 and much better reporting (including custom funnels). We also run GA in parallel just for the real-time reporting (which the biz folks love).