Thanks for all you replies. I have just completed my game of BG2 and will be starting on IWD soon.
Just some questions to those of who graciously replied:
1. Why choose a cleric/illusionist? Many of you seem to take this class.
2. Would it be better to have a straight thief or a fighter/thief? Multi or dual classed? I am thinking of creating a halfling thief to get the max bonuses.
3. Similary, straight druid or a multiclassed fighter/druid (influenced by Jaheira here

)?
4. Would be cleric ba able to make a good secondary tank?
Thanks.