Honestly, with the DDINS that you are comparing, they are all good choices and it really comes down to customer preference. We sell many of each of the units you mentioned (except for the Kenwoods now since they changed their sales strategy-still a good product though). I could basically give you 10 customers all of whom have bought different units, and they will all tell you why the one they purchased was "the best" in their opinion.

I will however suggest to you, that you don't always follow what you read on the internet (maybe including this?!?). There are some heavy biases there and allot of "my buddy bought one and he said this". You can't always tell who is on the other end of the opinion and what things may have formed it. Really, it just comes down to how you personally feel about a certain model and how it's features look and feel to you.