Speaking for myself I'd love to hear what you have to say. I have shown in IABCA, UKC, UDC and AKC. And that's probably the order of my preference. I like IABCA because you sit down with the judge and over their assessment and when it you're finished they hand it to you in writing. I found that very helpful in the whole learning process.I am actually doing my first UKC show on Friday, so I can come back and compare the experience to my AKC shows if you’d like.
An interesting thing for me is it's the same judges in all the different venues. That's very telling about where the trouble starts.