I'm loving your reports, and I only wish that they were pages long! However, I'm sure that you have better things to be doing than typing up reviews well into the evening.
Saint Louis is a marvellous zoo and when I think that Sea Lion Sound is opening soon, Polar Bear Point in the next 2-3 years, and additions to River's Edge (two bear species) I believe that the zoo will be close to flawless by 2015. I'm glad that you enjoyed Kansas City as that is a huge, unappreciated zoo with a vast African section that is almost too big to see in one exhausting day. Kansas City is let down by the rest of the (non-African) areas but there have been many improvements in the past 5 years and the future looks bright.
Omaha is always a hit-or-miss zoo for ZooChatters, with guys like you and David Brown on this forum perhaps being quite disappointed. But how do you account for the opinions of zoo authors like Allen Nyhuis or Tim Brown, who have seen 250 and 600 zoos respectively? Allen calls Omaha the 2nd best zoo in North America (after San Diego) and Tim has mentioned before that Omaha might possibly be in the top 5-6 zoos on the planet! I think that ranking/grading/reviewing zoos is a wonderful hobby and your love of Toledo Zoo just goes to prove that we all have our own, subjective opinion that is valid and correct. Many folks on ZooChat think that Toledo is only the 4th best zoo in the state of Ohio, as Columbus, Cleveland and Cincinnati are perhaps all better but you seemed to really enjoy Toledo's mixture of new and old exhibits. Omaha has consistently been a divisive zoo.
Keep the postings coming my friend. When I go on my mega road trips to 40+ zoos in the summer I sometimes wonder why I spend so long typing up reviews but the truth is that I mainly do it for myself as I love to have the statistics and recaps many years down the road. If you think that people aren't responding to your postings then just look at how many people are reading this thread and be heartened by the numbers!