I play an elf-only:
_ Defender fighter
_ 2-H weapon barb' (maybe next time I'll take a fighter)
_ 2-weapons fighter
_ armoured Cleric
_ shielded rogue
_ Archery fighter (bow&crossbow)

2-H Flail fighter
2 weapon fighter
Summon focused wiz
Control focused wiz
Ranged rouge
HealBot cleric

I tend to play all human. The party is similar to the what friends and I used to play in ADnD years ago.

Waiting for the Ranger class, he may be my new 2-weapons warrior.
What is often missing in games is that the Ranger is only an archer (or a dualwield): In LMA, with all the journeys, he should make them more easy. A Ranger is first who is able to go far by his own means.

Not fond like me of those powerfull mage, but nor cleric nor rogue lol

I'm keen to see what mages can do but I don't want to lose my lvl 19 team that took me so long to get to this level :)
Maybe in a new playthrough...

My shielded rogue was not a good idea, as too often he dies and even sometimes is one-shot killed.
As he is specialized in roguery, I must take turns buffing him warrior with my cleric so he is not at risk.
Maybe the good way was to make him a close archer, so by small distance he keeps his bonus from behind, but I wonder if their's a bug as I never was so able with a distance weapon.
EDIT: Even Defensive Roll (from lvl10) is not enough, he still dies, while others never die (or almost). I should name him Kenny...

One squad too, and they are at last lvl 10. How did you do to level so fast?