Starting new on green, rogue as first character?

[roundcubetwo]

IMO, it's whatever you want to play: whatever's fun to you. Just about all the camps (in or out of doors) are likely to be camped by groups, and those groups will need all sorts.

If you're asking what is easiest to solo with in a truly Classic setting, at the beginning necros and magicians are the most outright "powerful," and druids will be popular as well. But I really do think you'd be best off playing whatever race/class you like the most.
vidmate