I have been a devoted Google Reader user for years, so, like many, I was devastated to learn that they are shutting down this service. I wasn't happy about trying out and finding a new reader program but about a month ago I started using Feedly. It was nearly love at first click. With one-click migration I literally migrated my Google Reader subscriptions to Feedly in no more than a minute.
The interface is sleek and smooth with a variety of options for viewing subscribed blogs. A few minutes later I had the Android app installed on my phone and was impressed with how quickly I was won over. A month later I am still lovin' Feedly.
If you are still on the fence about which reader to use (hurry - Google Reader retires on July 1!) I highly recommend Feedly. I know that all the blogs I follow have been endorsing BlogLovin' but I have already fallen in love with Feedly and although I haven't tried BlogLovin' I know it just isn't going to make me as happy as Feedly has. The point of having a reader is to easily follow all those awesome blogs out there - they make blog following so much better - so, no matter which one you choose just make sure to get your subscriptions moved over before Google Reader goes offline.
EDIT: I added both a Feedly and BlogLovin button in the sidebar for one-click following :D