The following HDR images are created from 5 bracket shots, 1 EV apart between each shot. They were photographed at Colmar, France.
The two programs work quite differently. In Photomatix Pro, I have to try hard in order to create a HDR image with less so called HDR-look. On the other hand, I often obtain a relatively flat image in HDR Expose 2 that I need to bring into Capture NX2 to further adjust it. Thus for me, Photomatix Pro gives me images that have more HDR-look. The HDR Expose 2 gives me images that look more realistic. Both are good but serve different purpose.
Both programs create images in TIF format, thus I can no longer use the automatic lens distortion function of Capture NX2 to correct the image. I bring the images to PTLens for the automatic lens distortion adjustment as well as any necessary prospective correction. It is much more practical than Photoshop for this purpose.