Are you looking for Indica or Sativa?
From my experience:
The Church is a high yielder (dense ass buds)
Top 44 is a high yielder with a VERY short growing time.
Durban Poison consistantly produces 10 ounces per plant outdoors
White Rhino was potent but did not produce a lot
ICE was also potent but did not produce much
Bubblegum was a good producer
Thai Super Skunk (indoors) should get 4-5 ounces per plant bush style.
The best producing bud though, hard to tell.
Look for commercial bud on Attitude, they will actually tell you what is good for high yields.