The PVP server has their own forums if you want more info on the "dynamic" of the server. As far as classes go, necro or druid should be a pretty safe starting point. Neither are very gear dependent and they can both solo well. Enchanters also have amazing solo ability, but they are more gear dependent. Any of the three will certainly be capable of getting you to level 60 solo if you really wanted to, I would just expect to struggle a bit more on the enchanter at lower levels.
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