The best I can do is the results of the 1999 poll. Out of 36 National League Umpires, Angel Hernandez was listed 34th in temperment, 32nd in respect for players, 32nd in consistency, and 31st as worst overall. He didn't make the top 10 in any category.
http://www.stevetheump.com/ump_ratings.gif
Being a lifelong Red Sox fan, I watched every minute of ALCS Game 6. Despite the fact that the Sox won, I still say Angel Hernandez was an embarassment to umpires. His strike zone was all over the place. He called one foul tip and replays showed the bat missed the ball by a wide margin. Toss in his erroneous foul call on Todd Walker's home run earlier in the series in which Tim McClelland had to save his butt, and it makes me wonder what business this guy has officiating on a Major League Baseball field, let alone a playoff series.