Hah back in the OP terran days TvZ was my worst match up I think I literally won about 1 out of every 10 TvZ match ups I had. I think it was just because there were so few zergs playing back then that I never got a chance to really gain experience and knowledge of the match up (I also never did hellion or reaper openings either).
Edit: Haha yea that is always the best in nexus wars. I like income wars the best out of all the custom games now. I really wish they would come out with a good defense game like sunken d or matrix d from bw.