Best solo artist class after the big 3?

[Selene]

It's pretty much a foregone conclusion that the best solo artist classes are either enchanter or a torpor shaman. There also seems to be a consensus that necro, while a step below the other two, is the next best solo artist.

What class would people say is the 4th best? Is it druid? Bard? Or perhaps a well-geared monk?

I've seen quite a few cool videos of druids and monks doing well, though they obviously can't hold a candle to the other 3. But wanted to see what people thought, since I love soloing and find solo challenges to be the thing I look forward to the most at 60 (but I don't want to play any of the big 3 classes, ironically enough)