Everyone has their own ways that work for them (though some people are more “die hard” about their choices, sometime without giving other workflow a try). You will find out your own ways to learning Japanese too.
Anki works, but I found myself cheating quite a bit in there (I’ll be like, that’s a close enough answer, let me just press that spacebar). Also I got lazy and usually end up memorizing without mnemonics in there. WK keeps me honest (I don’t have any plugin to redo my answer, etc). I do use both though, especially now that I’m picking up reading Japanese source material.
I guess, bottom line is, try both (and other ways) over time and see what works for you. (It’s like dieting – was reading a news article where specific diets stick better with some people but not others. ;))
Also, at some point in the past, I got stuck spending so much time doing WK reviews in my limited studying time (at that point), that that’s the only thing I did. I don’t think that was healthy. I imagine learning kanji and kanji compounds without advancing your grammar, listening, and reading won’t be too effective. Nowadays, I limit my WK apprentice items to a small-ish number and try to spend time doing non-WK stuffs like reading news, manga, and going to Japanese classes at nearby community center.