The secret to PvP is to first identify the problem and then find a way to fix it.

Hunters have a lot of tools, if jumped by 2 people you could,
Face Target keybind
Disengage
Pet stuns on round robin while you focus one of them down

You'll need to narrow down your problems though, take baby steps. Just being killed by 2 people is too broad, you need to narrow down whats went wrong. I am sure there are ways around all the WPvP issues, you could stick with the hunter team and do fine.