i myself is playing as an orc raider, nad i can understand you, however i strongly recomend AC to lv 30 (thats how long i stayed there) and then i moved to upper levels of EG til i reached 40...
i hope that helps :)
P.s watch out for aggro assist mobs :p
for speed, find a good de healer at same level and go to cats, you can level 10X faster then hunting ac, if you have the cash so support top d gear and shots you can get to 40 very fast. About a month ago my girlfriend and i took a de healer and human warrior from lvl 1 to 40 in under 8 days but they were fully funded alts so it was very easy, 8 days = 2 sat, 1 sun, and 5 evenings after work, all inside cats.
The only thing that slowed us down was the occasional trainer and ofcourse, we also did this the immediatly after a game guard patch so we had free reign of the low lvl necro's and catacombs.
at 28ish its possible that you've been leveling in AC and are already sick of it. for a change of pace, try the wastelands and ant nest, since theres a nice range of mobs and a cool atmosphere you can do 28-38 here without getting bored. watch out for rooms that contain the ant queen, as the whole room is filled with raid mobs and they will just not die. when you approach 40 and outgrow this area, head out to death pass or just north of that where the orcs and lizardmen are. the level 40 raider quest has you kill about 100 lizardmen and 100 axe elites though, so if you start on these too early you may get seasick durring the quest. watch out for lords of plains and troop leaders, as these are group mobs and deadly unless you have 2+ people.
if you need another change of pace at 32+, check out the field of silence. good spawn rate, fast xp, lots of 1/2hp mobs (so they hit hard, but easy to kill) this area is a bit better for nukers tho since they tend to like lower hp mobs.