Just fitted the SRAM ones based on the recommendations here and they're great. The force required to turn them is just right and I especially like the fact that there is a little line marked on the sliding cable holder so that you have a reference point for fine adjustments. As a Campagnolo guy I just have to decide whether I'm going to leave the SRAM logos on them or not..
Re: doing without adjusters - I don't think I could live with that. On the rear one it's a real hassle to have to get off the bike to make a fine adjustment, it's far easier to do it when moving because you have continual feedback from the shifting. Also with the front one, although it doesn't need adjusting often it's a real pain getting it set up perfectly initially without any type of tension adjuster.
My SRAM ones were exactly 6g for the pair.