I like Opera best.....but I'm also fond of Konqueror - although I find the fact Konqueror is only available on KDE detracts from its apeal, as does being identified as Netscape by OneStat. I have now found a way to use Opera on whichever OS you chose, and still boost Konquerors usage at the same time!
I have used Exalead search on and off for a while. I have also noticed that many Konqueror hits come from France. Eventually, the penny dropped tc-gw.exabot.com, using Linux/Konqueror, is the Exalead bot collecting the preview images when you search using Exalead. Thus, browse with Opera, search with Exalead, increases the hit level for both browsers!