I use pretty much exclusively nichrome, occasionally a kanthal build. Just don't get on with stainless for some reason!
Normally I build between 0.3-0.4ohm on a series mech, para-series mechs are generally 0.2-0.3ohm. I would say 80% of the time I use atties 28.5mm diameter or bigger with bags of airflow, the only real specification I asked Stu for was that the mod had to be able to take 30mm atties without any over hang.
I tend to keep builds simple with 2 cell series mods, 24/36 claptons 3.5mm ID 8-10 wraps around the 0.35ohm resistance, or even 22awg plain old round wire.
The bigger the atty the crazier the build, 4mm ID is the norm.
Attached are pics of a few builds and some wire I currently use.
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