Yea there seems to be people on both sides of the coin. Both sides have valid points, but I guess it comes down to preference. Some say they can taste when dextrose is used and other say they like the flavor of the DME better. In either case I found some other helpful threads on this topic including one that splits 5 gallons and primes half with dextrose and half with DME. I do understand why it would take DME longer to work, which is a plus for my learning. I ended up priming this batch with wheat DME being I had it. The funny part about this is the the True Brew Bavarian Hefe kit comes with 5oz of dextrose. According to the CO2 calculation chart you would need 8.5oz of it to carb it to its recommended 3.4 to 4.48 (4.04)co2 at 66 - 68 degrees. So if it's your first time brewing one of these kits and your just following the directions on the box because it's just something to do and your not really into learning more about it, you'll end up with a low carbonated beer. Then again you probably don't have a hydrometer or know how to use it so your just cooking wart without understanding what you are doing at all.
A friend of mine is on tour over seas with a rock band and before he left he didn't have time to bottle his Pale Ale. I used the dextrose that came with the kit 5oz and the beer seems to be under carbonated. I didn't know about the co2 chart then but looking at it now it says I should have used 4.4oz of dextrose and I used the whole 5 oz. I would think carbonation should of been on the money, but there are other factors I don't know about being he cooked up the batch and I just bottled it for him. That batch did sit for over 6 or 7 weeks in the primary and there seems to be an off flavor to the beerin the back end. I'll still drink it though!
Thanks!