http://wiki.project1999.org/index.php/Zones
This will help a great deal
Orgs/haflings, each class has racial abilitys, some are better for each class depedning what you are playing, what each one is is listed on the site I linked.
Warriors/bards are fine picks, only downfall is as a warrior you are highly group dependant so if you can't find a group then you are kinda screwed. Bards are awsome for groups/solo but they have a -40% exp penelty so people get frustrated trying to fight that exp grind.
Newbie class to learn on: Mage, great in groups can also solo like a champ so not dependant in groups.
People twink but it's not an issue with finding groups.
Your friend to play if you play a cleric...enchanter/monk/warrior(really any class would work tho)
Can find groups at any lvl. Soloing is only painful if you do not enjoy doing it, I would suggest necro/bard/mage...mage being the main pick