using carbs and high quility protein as intra-workouts are amazing. Not to mention during bulking some people can't eat and these will help eating clean and getting your macros in.
I would have to vote for karbolyn all the way. Amazing taste, mixability, and everything else.
Orbit Nutrition - Buy All American EFX Karbolyn
They are other products with the same ingredients also and they sometimes go on sale for cheaper so heads up on that