I highly recommend FondX actually..... and I think its probably the most similar to MMF as far as being soft and easy to work with, and also has a good flavor.
I think Satin Ice has changed their recipe and I no longer like working with their fondant. Fondarific is nice, but you have to microwave it a little before kneading, and it also has a higher fat content so its a little more smooth than other fondant but does not take airbrushing as well (which is fine if you don't airbrush, but I don't like it for everyday use).
I love FondX.
I avoid Satin Ice like the plague. It rips and tears far too easily and has a funky flavor. I like mixing equal portions of Wilton (for GREAT workability) with modeling chocolate. The chocolate give the fondant great flavor and you get the ONE thing Wilton got right - fondant that's easy to use and doesn't rip and tear at every turn. 
Fondarific tastes great, but I find that it's SO hard in the containers that you have to nuke it a bit then it gets too soft. I, too, like FondX. Probably my favorite if going with just straight fondant.
It's completely ur personal opinion experiment with both of them before u start if ur completely unfamiliar with both I prefer satin ice for larger cakes cuz I dont think it dries out as fast another good choice if u r able to get it is fondex but u usually hav to buy it from a major supplier or directly from the maker on very large quantities but if u only use one piece of advice I give u do NOT use Wilton brand it dries out and cracks in about five seconds after u open it if u hav any other questions my username is fondantlover97 good luck!
Quote by @%username% on %date%
%body%