I Build Content Marketing Systems for Small Business Owners. I help my clients Monetize their Social Media Marketing Campaigns by Increasing their Online Visibility and Brand Awareness on the Right Social Networks with the Right Marketing Message to the Right People at the Right Time.
I've tried ½ dozen and I've scaled it down to two. 1) Goo.gl and 2) Bitly
I use Goo.gl when I post to Google+ and Bitly everywhere else. If you're planning to use Buffer App to schedule your updates, you will like how seamlessly Bitly works with Buffer. Even the fremium version lets you search for and find your Bitmarks to track # historical of clicks on your links.