[Mewse]

I would choose a:

- Warrior if I wanted to keep this character as my main through Velious. Make a name for yourself early while tanks and melee are at a premium. You'll struggle with agro until you get some good proc weapons, but you're the only tank without an exp penalty, so groups are going to pick you over all the other tanks anyways.

- Cleric for similar reasons as Warrior. You might have a harder time finding groups, because player congestion will be so high, and you only really need one healer. If you stick to undead dungeons, you could function decently as a dps as well. If you have any intention of raiding, you'll be able to choose any guild you want as a Cleric.

- Magician because you're a God in vanilla. Without any twinks running around, you get to be the top group dps in the game, outside of a charmed pet. Every group is going to want a Magician (or three!) in their group to melt things down. For the first few months you might legitimately have an easier time finding a group than any other class. It comes at a price though, because your raid role sucks, and you'll likely never see your epic, even if you keep this as your main through Velious.

- Druid if you want a guise. There's going to be a lot of Druids, so finding groups could be pretty hit and miss. Due to gear quality, evac is going to be a much bigger factor on Green than it is on Blue, so having a druid or wizard in the group to save the day might be pretty handy. Due to likely congestion issues, the ability to solo won't help you much, so I wouldn't factor that into your decision for any class in vanilla. Because of the popularity of the Druid class in general, I also wouldn't count on much money for porting until Kunark. A great choice if you just love the class, or plan to re-roll later on.