Mob difficulty is the same, but with the spacing and distance between mobs its simple enough to get to most named without the hassle of dealing with adds. I havn't roamed much and tend to stick near bat 1, guano, champ / advis room and lava crawler areas.
The fire giants need to be made tougher if they're part of the naggy raid and some of the named giants are really easy to a naggy raid force.
Champ room is EVIL if both named are up
