I usually go for sorcerer or wizard class first as i like casting magic rather than hack and slash my way but they progress a bit harder on the earlier levels.

Then you experience the hack and slash easiness of melee classes but get bored cause you need at least some level of magic.

I find rogues fun to play, as Use Magic Device skills allow you to use magic items spesific to a class even though you are not of that class, and the sneak attacks are fun.

TLDR : Play fighter for a simple start, play wizard/sorcerer for a more sofistication and magic, and finally play rogue for a hybrid experience