Most people who will comment on here will give you a glowing review of their officiant but it really depends on what you want from the ceremony. Do you want a religious ceremony, personal vows etc? You may want to drop them all an email asking for ceremony examples to get a feel of what they are like?
We had Ron Rosenzweig for our wedding back in November and he was wonderful. He was friendly, took us through everything before the ceremony, confirmed our personal reading and read it word perfect.
We had no guests at our ceremony and Ron was even kind enough to toast us, which I thought was a lovely touch.
I'll be honest though and say his email communication is not the best, he responds quickly but they are very much down to business and don't really show any personality or warmth. However, in person it was an entirely different story.
Good luck deciding!