i use heat n bond lite, steam a seam lite and wonder under...
regular heat n bond and steam a seam are (no-sew) products - the lite versions are for sewing projects- not as stiff- easier to get a needle through- less likely to gum up needle. wonder under from pellon has been around the longest of the paper backed fusables...
all of them work pretty well- there are always instances when one works better than another- i recommend picking them up on sale and trying them all- then you can decide what you like- and what works best for you...
one thing about paper back fusables- none of them work real well on batik's (because of the wax in the fabrics) all will work best on pre-washed fabrics...sometimes the sizing or other chemicals will keep the fusable from adhering well.