I dont use much in the way of aspect warriors. Just now trying out reapers. but large numbers of guardians on the move with a starcannon or two is powerful. Harliquens for counterpunch (they move thru cover) Dire avengers for sheer fire power. Plus i like the tanks, even the transports are better than most other races MBT's. Eldar require a litte paitence to play cant just run and get stuck in. First you tenderize the target then you select juicy bit to bite off. If a big nasty unit come at you run away. Most races will never catch you. And remeber many of your weapon have good AP and Str.