Several people suggested to me to look at SEO in Stack Overflow, however this would suggest the opposite of what is happening. The content on (and linked from) my Stack Overflow profile is definitely richer than on my other profile pages, yet the Stack Overflow page is listed much lower than others.
Also my Stack Overflow profile has more inbound links, so again it should be ranked higher normally.
Over the time I have ended up with quite a few profiles across Stack Exchange sites. By far the largest (and still most active) is my Stack Overflow profile, there are a few medium size ones and some others are quite inactive/small.
Recently I googled my own name (same as my username), and I saw several profiles of different Stack Exchange sites, but I actually had to go to the second page to reach Stack Overflow.
I understand I could probably fix this with some SEO tricks (like linking to my Stack Overflow profile from my other ones), but I was still wondering the following:
Does Stack Exchange do anything 'smart' to help google put the most active profiles on top? -- And if so, why is my top profile not on top?
And of course, if I need to configure something for this, how would that work?
Side note: I always synchronise my description across all profiles so I don't think that caused the situation.