For your first character, of that list, I would go Iksar Necromancer. The regen really puts that race far above all others as a choice for Necro.
Playing a melee as a first character will get really tough, as you can't really solo effectively past the teens. And even if you plan on grouping all the time, sometimes its nice to have the option to solo when there are no groups in your area, or there are too many.
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