I use Elite Force and ASG. Both are great in my opinion.

using bioshot .32s from airsoftstore and gryphon .3s at the moment. Bioshot .32s are more like .31s apparently. I don't have a scale to verify this. I also use green devil .28s and .3s if I can get them.

ASG Blaster Devils have been good to us. We've used the 30s.

Bastards were my go to. However, I've never had any issues with the Madbulls and have been running through a bunch of .28 EF that I got as extras in a few deals locally without much fuss. I was really impressed with the Krytac brand last summer and will probably pick up more this season.