Most popular classes on Battle.net

In other words, classes that benefit groups instead of singles.
As someone who doesn't have broadmand connection, and only play the game in single mode, I find the Paladin and Necromancer hard to use.
A single player Sorceress however, is virtually indestructable from about Lv 18 onwards. (Go firewall)
But, I am a rookie.

You can't spell 'fundamentalist'
without the word MENTAL.