Is there some kind of site somewhere that could simply gather votes on simple questions such as "do you like the Gmail UI ?" so that we can talk numbers, if possible with a large enough user base to avoid the sample-size bias ? I'd be interested to know if there were. That way, we could really compare if most people have a problem or not with the Gmail UI.
At least, we can see there was a significant increase of "Gmail interface sucks" articles when the new UI came out. That has to represent some part of the users, to the least.