I think the Taiwanese version with radicals (Zhuyin system) is most analogous to other East Asian alphabets, but I have yet to see any custom keycap sets designed with these subs.
Not to derail this thread, but you might be interested in
GMK Zhuyin, which ran in February, or
KAT Monochrome, which ran just over a month ago. The former is an add-on kit which adds Zhuyin sublegends to a standard ANSI GMK set; the latter included Zhuyin monolegends as an option.
Unlike kana input, which is a minority preference even in Japan, it is my understanding that in Taiwan, zhuyin is the preferred input method amongst native speakers of Chinese. For this reason, I would love to see more zhuyin sublegend and monolegend sets out there!
This IC and the aforementioned Shanshui are in the Cangjie system. I think it looks more "Chinese" vs. the Zhuyin radical system.
From an aesthetic point of view, I’m inclined to agree, and I’m very excited for these two sets. I’ve been trying to learn the Cangjie system in preparation for GMK Shanshui’s release, and it’s a very cool system, although I must say I find Zhuyin input much easier to use as a non-native speaker of Chinese. At any rate, I am excited to see both of these input methods gain traction in the community!
Regarding simplified vs. traditional characters, grundlemere has put an incredible amount of effort into supporting both writing systems fully and effectively, and this despite his main interest and experience being with simplified characters as used in mainland China, so I think we are past the point of needing to complain about simplified vs. traditional now. As someone who is learning Taiwanese Mandarin, I am just grateful that he went out of his way to include support at all, and having done so, that he went the extra mile to make sure he got it right (see previous posts about the extremely minor changes in characters like 火 and 女 for examples of this).