For my part I took the same 4 persons for my group. Ifan I took right from start (since I prefer as playing as human) and made him knight since I need a tank in 1st case.
The lizard is my summoner, since lizards benefits from arcane arts and summoning gets you free meat shields in form of summons, which helps in winning fights.
Fane is my rogue character, with high damage output in dual wield.
The elf is my ranger, with pyro as second profession who will do damage from far away!
As for battlemage I recommend you to have at least one tank. Maybe you should consider taking the dwarf as fighter because without tank it will be hard later on i guess...
