These entries are good. They definitely have a flashy theme which I like.
Entry #2 is less preferred because the font color of "Muscle" is harder to read.
The ribbon doesn't have much significance. I like it but I don't think it fits. See if you can incorporate actual muscle in some way. I'd like to see one or more of the letters come to life in muscle form somehow.
My gut tells me that these logos look more like logos of a racecar company than a supplement company. I do like the direction.