I liked the spiciness of Wild Fern, but it came across a bit feminine to me, something I would only where on special occasion and not as an office frag. On the other hand I find English Fern to be something I can wear anytime and it lasts all day on my skin. Wild Fern goes for $50-$60/50ml while English Fern goes for around $80/50ml
I've never tried English Fern, but there's something about Wild Fern that makes it un-bottle-worthy to me. I seem to recall picking up almost a minty note in there that I didn't care for. I've crossed Wild Fern off of my list after having a sample of it.
They are very similar on application with Wild Fern having a bit more warm spiciness and English Fern being a bit sharper. I prefer the sharp edge of EF. As they dry down, EF opens a bigger lead for me. I don't get much longevity out of WF - it's gone in 3-4 hours. EF lasts all day.