I've personally taken more pre workout supplements than I can count and few really work well.
What I want in a pre workout supp:
1. Serious consistent energy. Not just 'i had a cup of coffee energy', energy that really gets u going!
2. Focus. With a million thoughts running through my head, i want to block out 999,999 of those thoughts and just focus on my current set.
3. Pump. Veins bulging and noticeable increase in size during your workout routine.
4. No crash! No matter how good a pwo is, if it makes u crash then it's not worth it.
So with the above, my favorite pre workouts currently are bullnox andorush and craze. I still love C4 too, but craze and bullnox give u no jitters. The pump that bullnox gives u is amazing. And the clean consistent energy craze gives u is just as good!
A great top 10 list of the best pre workout supplements of 2013:
What is your favorite and why?