All of the forged Wusthof models use the exact same blade and alloy. The tangs and bolsters may slightly vary to accommodate a different handle, balance or weight. Also something unique to Wusthof is it uses one solid piece of steel from blade tip to the butt (very rear). Almost all other knife companies, including Henckles use the good alloy in the blade but weld a cheaper alloy for the tang. The weld is the weak point...Relatively hard to break a knife like the forged Henckles, but an accidentally drop increases the odds of it breaking. Henckles is guaranteed for life. Macys and Bed Bath and Beyond employees state they almost never have seen a Wusthof come in for replacement. The positives of the Germans...Very heavy, which assists some with cutting. Also, the general public is under the false illusion that heavier is better so you may impress your friends/family. Lifetime warranty. Very "tough", allowing you to "steel and go". The Grand Prix II is on close out, dirt cheap. Sort of cheap looking plastic textured handles, but they're actually very non slip if you deal with chicken parts.
The down side is the relatively soft steel and thick blade, their opposite is the Japanese knives. As you pointed out the Torjin DP is the best Japanese value knife. Most recommended Japanese knives will simply cut better than the germans. I personally like shun because they offer free sharpening for life, but you have to pay shipping each time. I'd rather send something off than sharpen it.
Most say find a knife that feels good in your hand. Some people like to "rock" a knife while others like to push down. Handles also plays a huge factor in the way they feel in your hand.
For the record I own the Wusthof Grand Prix II block set, 8" victorinox 8" shun, 8" Might Mac and henckles twin presentation steak knife set. I have tried the Torjin DP the misono ux-10. Misono was the best I've ever used, followed by my mighty Mac. In most cases of the chefs kinfe, I'll grab the cheap victorinox as the workhorse, than the Shun due to the free sharpening and use Mac for specialty work. Very rarely do I use the Wusthof chef knife.