"powergaming" or "strong" party Icewind Dale II?

so there is BG2 thread with powergaming but what about IWD2? it is more complicated but also way bigger on character creation and so on.

i am curious of your party especially rogues coz i have read ultimate powergaming party and other guide and their "thief" is drow thief(1)/conjurer
Str: 11
Dex: 20
Con: 16
Int: 20
Wis: 8
Cha: 5

but not only drows are ECL -2 u also pick 1 lvl thief for all the thief bonus skills and that means u are 3 levels behind normal wizards