I think it would best to decide which city you want to be part of, to interact with the npcs who are the leaders or important individuals of that city and getting familiar with the lore. By level 10 you can switch to another class and for the main quest it is not too long before you will get access to the other cities. Seeing as how you want Marauder, it would not be a bad idea to get some levels in conjuror for skills such as heal and protect. Also archer has a useful skill called raging strike. Personally when I started in 1.0 I chose the city I wanted to live in. Just my 2 cents.
