I've had a Keurig B 66 for about one year and a Bunn that I've had since Sept. Both are great machines but I give the edge to the Bunn.
Not only do you have a wide variety of pods available the Fratello for example are in many cases are given the Cup of Excellence seal.
There hasn't been many from the roaster that I've disliked. Reunion Island also puts out a very tasty product.
But you have many companies to choose from. Some companies have cut back drastically on pod production but still that leaves so much more than K-cups.
The Keurig is a good sturdy machine, solidly built and is being advertised like crazy on different tv channels.
There is less K-cups available then pods and in doing a side by side comparison between the same companies pod vs K-cup the pod wins in taste but most importantly it can be disposed of easier than the plastic in the K-cups.
Bottom line is: if you can afford both formats why not have the best of both worlds.