I have been using VitaminShoppe multivitamins "especially for Men" I purchased from one of their outlets, compared a lot of labels and this product looked pretty good and at a great price. I always look for some key elements on the labels:
I prefere little to no Iron.
and have good amounts of:
Zinc, Selenium, Copper, Folic Acid
the other stuff doesnt vary too much from brand to brand, i have seen labels with b vitamins at near %10,000 above RDA all that excess just gonna get pissedd out.
if you eat those protien bars and meal replacements your probably getting most of the vitamins you need with them as most have pretty good amounts in them.