Vegan with a vengence is only a good cookbook if you can follow recipes easily, you have access to a lot of different sometimes odd ingredients and you have a lot of time and patience. I have pretty much none of the above and therefore VwaV is a pretty useless cookbook to me. I tend to use it for inspiration and just to read but i've only ever used one recipe out of it, but i have to admit it was pretty good.
I don't really tend to use cookbooks for recipes, i tend to use them for inspiration. But a cookbook i would recomend is how it all vegan and it's sequel the garden of vegan, good basic cookbooks, without that many airy fairy ingredients, simple layout and it's a good read, only downside is lack of pictures for inspiration.
I wouldn't recomend vegan cupcakes take over the world unless you want a specific cake related book, to me it seems a bit stupid to buy one cookbook devoted to one type of dish if you don't have some good basic cookbooks first.