Bisch was at his best early on. He was such a total sleeze that he was consistently entertaining. Hell, when he showed up SD in the crowd, he was being cheered, and the crowd went nuts during the Billy/Chuck wedding when Steph got attacked by 3MW.
...and then he got his balls chopped off and became a tolerable, but dull heel.
However, with him gone I'd rather they either forget about naming a GM, or any GM named would just show up once in a while rather then several time per show.