I use the WBH buttercream a lot too, but it doesn't hold up well at all to heat. Not even to the heat of my hand.....so I can't use it to decorate much. If I do, I have to fill two bags at a time so I can put one down and switch off every time it gets too soft, which is about every 2 mniutes.......major pain. But it does taste good.....significantly less sweet than others. Guess that's why it's so soft.
I have used a Martha recipe for SMBC, but it didn't call for any pre-whipping of butter....... hmmm...... That was very good, but almost too buttery. Maybe I'll try to add a tiny bit more sugar.
I still want to try Sugarshack's. I have the DVD, but haven't watched it yet.
I have used indydebi's on many occasions. I like it OK. Still pretty darn sweet, but it holds up better than the WBH for decorating and in the heat.
I tried buttercream dream and really didn't like it much at all, though it seems popular on here. Just another good example of how we all have different taste buds!
Someday when I am bored, (not sure when that will be?) I should try to take all of the parts of all the recipes that I like and make one that I really like the best......which is not too sweet, not too buttery, and holds up in the heat. I'll call it Heather's Frosting Nirvana! And when it becomes a raging hit on CC, you can all refer to it with the requisite "secret code" of HFN.....