There have many problem when you are choose class in Allods. Maybe you want a pvp class that can pve well, or you want big damage, with a big pool of health and some armor in, or you want Dots and burst damage or you want a pet. Maybe you need more allods gold for your character.
If you want pets Summoners and wardens are the only way to go, both can do fine in pvp but they are not as efficient as a mage a warrior or a psi in Allods. If you want go all "Die Hard" and Chuck Norris on people you should play a warrior or a paladin, or even a Healer (man those guys just wont die )
Scouts and mages are the choice for you if you want Big numbers on the scream. The Healer is the only jack of all trades in this game post level 30, it tanks well, heals single target or a group of 2 well, has some control, and does above mediocre damage.
Decent damage output (more than tank classes and not far from mage) but at level(allods gold) 30 you get plate armor and will be able to tank some, and you'll be the best singletarget/ duo healer. Also, healers have many skills that hold/root/blind/stun, although for a shorter time than the Psi.
Especially for just starting the Allods, you can choose warden. Its a good character to test with and even when you dont know what your doing your build will get you through. Other classes such as warriors or scouts if you mess up with the skills and rubies you wont do so hot later on.
