THe game is more beneficial for groups , although with the playerbase its hard for players of your stature to get into groups.
As for your starting character id say go with a barb/fighter. They have a wide range of weapons/armor they can use and the weapons they can use are on the cheaper side.
As you progress in the game more characters unlock giving you more powerful chars then the starting chars.
GRoup is better for everything, but you do risk on rolling the dice for drops as its a cut throat drop system
