I think we should take a step back and appreciate Larian. They could have made a father and son with the names Tywin and Tyrion. Imagine trying to keep those names straight, lol. Seriously though, I think it is good that the names are rather distinct. But I don't think there is a huge issue with Gale, as I believe he is a plain wizard and not a themed wizard. Maybe its just me, but I think Will is a good, fantasy name, like Sam. His parents are celebrities so they had to do something weird with it.