For pliers, I'd go with Channellock, they make a very good, and durable tool. I'm sure the Wiha's are also good, but why make the decision difficult, Channellock makes great pliers at a fair price, with the added bonus of keeping some USA workers employed. To me, this is a no-brainer.
Now, if the particular set does not match your needs, then that's another story. As others have mentioned, just source out the individual pieces that you may need...
I think if you are going to go European (or Vietnamese, as the case may be...), go with Knipex, they are very well made, and durable. Of course you pay more, and I don't think you get much of an advantage compared to Channellock tools. I personally think people get too wrapped around the axle on these decisions, go with the quality tool that has a decent price. Also, the code blue handles are nice, but not necessary. I think you can get a better value with the regular grips. YMMV.