Only use Google and love it.
Can you clarify if you are referring to web and marketing related analytics or analytics of the data that your startup will generate? They each require different approaches and tools.
I use Raventools and Cyfe dashboard solutions - they allow me to import multiple data sources for a more holistic view of company KPI's.
Can you provide more information re: the KPIs you're trying to measure? Some of the tools you mentioned measure different things, so for us to give you a good answer we need to understand what your goals are.
With experience working on different sizes of projects (from local nail spas to the biggest global brands), Google Analytics still comes on top being the best (and my favourite) analytic tool, period.