Been using Opera for years now. IE is alien to me and just seems... not very good, and featureless for what I want. Firefox seems unreliable these days. Chrome seems good but again seems to lack what I want.
Opera has several features I'm used to - the built in mail client, the gestures, the speed... it's all what I'm used to, even though I use FF occasionally when I have to. Of course there are probably FF plug-ins that mimic Opera features, but FF crashes enough anyway....
Wish there was Opera for the miggy, that's all.